Green is the
color
Color (or colour in English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-our, -or, see spelling differences) is the visual perception based on the electromagnetic spectrum. Though co ...
between
cyan
Cyan () is the color between blue and green on the visible spectrum of light. It is evoked by light with a predominant wavelength between 500 and 520 nm, between the wavelengths of green and blue.
In the subtractive color system, or CMYK c ...
and
yellow
Yellow is the color between green and orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575585 nm. It is a primary color in subtractive color systems, used in painting or color printing. In t ...
on the
visible spectrum
The visible spectrum is the spectral band, band of the electromagnetic spectrum that is visual perception, visible to the human eye. Electromagnetic radiation in this range of wavelengths is called ''visible light'' (or simply light).
The optica ...
. It is evoked by light which has a
dominant wavelength
In color science, the dominant wavelength is a method of approximating a color's hue. Along with purity, it makes up one half of the Helmholtz coordinates. The dominant wavelength of a given color is defined to be the wavelength of monochromatic ...
of roughly 495570
nm. In
subtractive color
Subtractive color or subtractive color mixing predicts the spectral power distribution of light after it passes through successive layers of partially absorbing media. This idealized model is the essential principle of how dyes and pigments are ...
systems, used in painting and color printing, it is created by a combination of yellow and cyan; in the
RGB color model
The RGB color model is an additive color, additive color model in which the red, green, and blue primary colors of light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials ...
, used on television and computer screens, it is one of the
additive primary colors
Primary colors are colorants or colored lights that can be mixed in varying amounts to produce a gamut of colors. This is the essential method used to create the perception of a broad range of colors in, e.g., electronic displays, color printin ...
, along with
red
Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–750 nanometres. It is a primary color in the RGB color model and a seconda ...
and
blue
Blue is one of the three primary colours in the RYB color model, RYB colour model (traditional colour theory), as well as in the RGB color model, RGB (additive) colour model. It lies between Violet (color), violet and cyan on the optical spe ...
, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is
chlorophyll
Chlorophyll is any of several related green pigments found in cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words (, "pale green") and (, "leaf"). Chlorophyll allows plants to absorb energy ...
, the chemical by which plants
photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as
camouflage
Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the b ...
. Several
mineral
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2011): Mi ...
s have a green color, including the
emerald
Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium or sometimes vanadium.Hurlbut, Cornelius S. Jr., and Kammerling, Robert C. (1991). ''Gemology'', John Wiley & Sons, New York ...
, which is colored green by its
chromium
Chromium is a chemical element; it has Symbol (chemistry), symbol Cr and atomic number 24. It is the first element in Group 6 element, group 6. It is a steely-grey, Luster (mineralogy), lustrous, hard, and brittle transition metal.
Chromium ...
content.
During
post-classical
In Human history, world history, post-classical history refers to the period from about 500 CE to 1500 CE, roughly corresponding to the European Middle Ages. The period is characterized by the expansion of civilizations geographically an ...
and
early modern
The early modern period is a Periodization, historical period that is defined either as part of or as immediately preceding the modern period, with divisions based primarily on the history of Europe and the broader concept of modernity. There i ...
Europe, green was the color commonly associated with wealth, merchants, bankers, and the gentry, while red was reserved for the nobility. For this reason, the costume of the ''
Mona Lisa
The ''Mona Lisa'' is a half-length portrait painting by the Italian artist Leonardo da Vinci. Considered an archetypal masterpiece of the Italian Renaissance, it has been described as "the best known, the most visited, the most written about, ...
'' by
Leonardo da Vinci
Leonardo di ser Piero da Vinci (15 April 1452 - 2 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially rested o ...
and the benches in the British
House of Commons
The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...
are green while those in the
House of Lords
The House of Lords is the upper house of the Parliament of the United Kingdom. Like the lower house, the House of Commons of the United Kingdom, House of Commons, it meets in the Palace of Westminster in London, England. One of the oldest ext ...
are red. It also has a long historical tradition as the color of
Ireland
Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
and of
Gaelic culture
The Gaels ( ; ; ; ) are an Insular Celtic ethnolinguistic group native to Ireland, Scotland, and the Isle of Man. They are associated with the Gaelic languages: a branch of the Celtic languages comprising Irish, Manx, and Scottish Gaelic ...
. It is the historic color of
Islam
Islam is an Abrahamic religions, Abrahamic monotheistic religion based on the Quran, and the teachings of Muhammad. Adherents of Islam are called Muslims, who are estimated to number Islam by country, 2 billion worldwide and are the world ...
, representing the lush vegetation of
Paradise
In religion and folklore, paradise is a place of everlasting happiness, delight, and bliss. Paradisiacal notions are often laden with pastoral imagery, and may be cosmogonical, eschatological, or both, often contrasted with the miseries of human ...
. It was the color of the banner of
Muhammad
Muhammad (8 June 632 CE) was an Arab religious and political leader and the founder of Islam. Muhammad in Islam, According to Islam, he was a prophet who was divinely inspired to preach and confirm the tawhid, monotheistic teachings of A ...
, and is found in the flags of nearly all Islamic countries.
In surveys made in
American, European, and
Islamic countries
The terms Islamic world and Muslim world commonly refer to the Islamic community, which is also known as the Ummah. This consists of all those who adhere to the religious beliefs, politics, and laws of Islam or to societies in which Islam is p ...
, green is the color most commonly associated with
nature
Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physic ...
,
life
Life, also known as biota, refers to matter that has biological processes, such as Cell signaling, signaling and self-sustaining processes. It is defined descriptively by the capacity for homeostasis, Structure#Biological, organisation, met ...
,
health
Health has a variety of definitions, which have been used for different purposes over time. In general, it refers to physical and emotional well-being, especially that associated with normal functioning of the human body, absent of disease, p ...
,
youth
Youth is the time of life when one is young. The word, youth, can also mean the time between childhood and adulthood (Maturity (psychological), maturity), but it can also refer to one's peak, in terms of health or the period of life known as bei ...
,
spring,
hope
Hope is an optimistic state of mind that is based on an expectation of positive outcomes with respect to events and circumstances in one's own life, or the world at large.
As a verb, Merriam-Webster defines ''hope'' as "to expect with confid ...
, and
envy
Envy is an emotion which occurs when a person lacks another's quality, skill, achievement, or possession and either desires it or wishes that the other lacked it. Envy can also refer to the wish for another person to lack something one already ...
. In the
European Union
The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
and the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
, green is also sometimes associated with
toxicity
Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacteria, bacterium, or plant, as well as the effect o ...
and poor health, but in China and most of Asia, its associations are very positive, as the symbol of fertility and happiness. Because of its association with nature, it is the color of the
environmental movement
The environmental movement (sometimes referred to as the ecology movement) is a social movement that aims to protect the natural world from harmful environmental practices in order to create sustainable living. In its recognition of humanity a ...
. Political groups advocating environmental protection and social justice describe themselves as part of the
Green movement
Green politics, or ecopolitics, is a political ideology that aims to foster an ecologically sustainable society often, but not always, rooted in environmentalism, nonviolence, social justice and grassroots democracy. Wall 2010. p. 12-13. It ...
, some naming themselves
Green parties
A green party is a formally organized political party based on the principles of green politics, such as environmentalism and social justice.
Green party platforms typically embrace social democratic economic policies and form coalitions with ...
. This has led to similar campaigns in advertising, as companies have sold green, or
environmentally friendly
Environment friendly processes, or environmental-friendly processes (also referred to as eco-friendly, nature-friendly, and green), are sustainability and marketing terms referring to goods and services, laws, guidelines and policies that c ...
, products. Green is also the traditional color of safety and permission; a green light means go ahead, a
green card
A green card, known officially as a permanent resident card, is an identity document which shows that a person has permanent residency in the United States. ("The term 'lawfully admitted for permanent residence' means the status of having been ...
permits permanent residence in the United States.
Etymology and linguistic definitions

The word ''green'' comes from the
Middle English
Middle English (abbreviated to ME) is a form of the English language that was spoken after the Norman Conquest of 1066, until the late 15th century. The English language underwent distinct variations and developments following the Old English pe ...
and
Old English
Old English ( or , or ), or Anglo-Saxon, is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the Early Middle Ages. It developed from the languages brought to Great Britain by Anglo-S ...
word ''grene'', which, like the
German
German(s) may refer to:
* Germany, the country of the Germans and German things
**Germania (Roman era)
* Germans, citizens of Germany, people of German ancestry, or native speakers of the German language
** For citizenship in Germany, see also Ge ...
word ''grün'', has the same root as the words ''grass'' and ''grow''. It is from a
Common Germanic
Proto-Germanic (abbreviated PGmc; also called Common Germanic) is the reconstructed proto-language of the Germanic branch of the Indo-European languages.
Proto-Germanic eventually developed from pre-Proto-Germanic into three Germanic bra ...
''
*gronja-'', which is also reflected in
Old Norse
Old Norse, also referred to as Old Nordic or Old Scandinavian, was a stage of development of North Germanic languages, North Germanic dialects before their final divergence into separate Nordic languages. Old Norse was spoken by inhabitants ...
''grænn'',
Old High German
Old High German (OHG; ) is the earliest stage of the German language, conventionally identified as the period from around 500/750 to 1050. Rather than representing a single supra-regional form of German, Old High German encompasses the numerous ...
''gruoni'' (but unattested in
East Germanic
East is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth.
Etymology
As in other languages, the word is formed from the fact that eas ...
), ultimately from a
PIE root
The roots of the reconstructed Proto-Indo-European language (PIE) are basic parts of words to carry a lexical meaning, so-called morphemes. PIE roots usually have verbal meaning like "to eat" or "to run". Roots never occurred alone in the langu ...
''*'' "to grow", and root-cognate with ''
grass
Poaceae ( ), also called Gramineae ( ), is a large and nearly ubiquitous family (biology), family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos, the grasses of natural grassland and spe ...
'' and ''
to grow''.
The first recorded use of the word as a color term in Old English dates to ca. AD 700.
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
with ''
viridis'' also has a genuine and widely used term for "green". Related to ''virere'' "to grow" and ''ver'' "spring", it gave rise to words in several
Romance languages
The Romance languages, also known as the Latin or Neo-Latin languages, are the languages that are Language family, directly descended from Vulgar Latin. They are the only extant subgroup of the Italic languages, Italic branch of the Indo-E ...
, French ''vert'', Italian ''verde'' (and English ''
vert
Vert or Verts may refer to:
* Vert (heraldry), the colour green in heraldry
* Vert (music producer) (born 1972), pseudonym of Adam Butler, an English music producer
* Vert (river), in southern France
* Vert (sport), a competition in extreme versio ...
'', ''
verdure'' etc.).
Likewise the
Slavic languages
The Slavic languages, also known as the Slavonic languages, are Indo-European languages spoken primarily by the Slavs, Slavic peoples and their descendants. They are thought to descend from a proto-language called Proto-Slavic language, Proto- ...
with ''
zelenъ''.
Ancient Greek
Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ...
also had a term for yellowish, pale green –
χλωρός, ''chloros'' (cf. the color of chlorine), cognate with χλοερός "verdant" and χλόη "
chloe
Chloe (; ), also spelled Chloë, Chlöe, or Chloé, is a feminine name meaning "blooming" or "fertility" in Greek. The name ultimately derives, through Greek, from the Proto-Indo-European root , which relates to the colors yellow and green. Th ...
, the green of new growth".
Thus, the languages mentioned above (Germanic, Romance, Slavic, Greek) have old terms for "green" which are derived from words for fresh, sprouting vegetation.
However,
comparative linguistics
Comparative linguistics is a branch of historical linguistics that is concerned with comparing languages to establish their historical relatedness.
Genetic relatedness implies a common origin or proto-language and comparative linguistics aim ...
makes clear that these terms were coined independently, over the past few millennia, and there is no identifiable single
Proto-Indo-European
Proto-Indo-European (PIE) is the reconstructed common ancestor of the Indo-European language family. No direct record of Proto-Indo-European exists; its proposed features have been derived by linguistic reconstruction from documented Indo-Euro ...
or word for "green". For example, the Slavic ''zelenъ'' is cognate with
Sanskrit
Sanskrit (; stem form ; nominal singular , ,) is a classical language belonging to the Indo-Aryan languages, Indo-Aryan branch of the Indo-European languages. It arose in northwest South Asia after its predecessor languages had Trans-cultural ...
' "yellow, ochre, golden".
The
Turkic languages
The Turkic languages are a language family of more than 35 documented languages, spoken by the Turkic peoples of Eurasia from Eastern Europe and Southern Europe to Central Asia, East Asia, North Asia (Siberia), and West Asia. The Turkic langua ...
also have ''jašɨl'' "green" or "yellowish green", compared to a Mongolian word for "meadow".
Languages where green and blue are one color

In some languages, including old
Chinese,
Thai, old
Japanese
Japanese may refer to:
* Something from or related to Japan, an island country in East Asia
* Japanese language, spoken mainly in Japan
* Japanese people, the ethnic group that identifies with Japan through ancestry or culture
** Japanese diaspor ...
, and
Vietnamese
Vietnamese may refer to:
* Something of, from, or related to Vietnam, a country in Southeast Asia
* Vietnamese people, or Kinh people, a Southeast Asian ethnic group native to Vietnam
** Overseas Vietnamese, Vietnamese people living outside Vietna ...
, the same word can mean either blue or green. The
Chinese character
Chinese characters are logographs used to write the Chinese languages and others from regions historically influenced by Chinese culture. Of the four independently invented writing systems accepted by scholars, they represent the only on ...
青
Radical 174 or radical blue () meaning "blue" or "green" or "black" (see '' Distinguishing blue from green in Chinese'') is one of the 9 Kangxi radicals (214 radicals in total) composed of 8 strokes. It is also the character representing the col ...
(pronounced ''qīng'' in
Mandarin
Mandarin or The Mandarin may refer to:
Language
* Mandarin Chinese, branch of Chinese originally spoken in northern parts of the country
** Standard Chinese or Modern Standard Mandarin, the official language of China
** Taiwanese Mandarin, Stand ...
, ''
ao'' in Japanese, and ''
thanh'' in
Sino-Vietnamese) has a meaning that covers both blue and green; blue and green are traditionally considered shades of "
青
Radical 174 or radical blue () meaning "blue" or "green" or "black" (see '' Distinguishing blue from green in Chinese'') is one of the 9 Kangxi radicals (214 radicals in total) composed of 8 strokes. It is also the character representing the col ...
". In more contemporary terms, they are
藍 (''lán'', in Mandarin) and
綠 (''lǜ'', in Mandarin) respectively. Japanese also has two terms that refer specifically to the color green,
緑 (''midori'', which is derived from the classical Japanese descriptive verb ''midoru'' "to be in leaf, to flourish" in reference to trees) and グリーン (''guriin'', which is derived from the English word "green"). However, in Japan, although the traffic lights have the same colors as other countries have, the green light is described using the same word as for blue, ''aoi'', because green is considered a shade of aoi; similarly, green variants of certain fruits and vegetables such as green apples, green ''
shiso
''Perilla frutescens'' var. ''crispa'', also known by its Japanese name shiso (), is a cultigen of '' Perilla frutescens'', a herb in the mint family Lamiaceae. It is native to the mountainous regions of China and India, but is now found world ...
'' (as opposed to red apples and red shiso) will be described with the word ''aoi''. Vietnamese uses a single word for both blue and green, ''
xanh'', with variants such as ''xanh da trời'' (azure, lit. "sky blue"), ''lam'' (blue), and ''lục'' (green; also ''xanh lá cây'', lit. "leaf green").
"Green" in modern European languages corresponds to about 520–570 nm, but many historical and non-European languages make other choices, e.g. using a term for the range of ca. 450–530 nm ("blue/green") and another for ca. 530–590 nm ("green/yellow"). In the comparative study of
color term
A color term (or color name) is a word or phrase that refers to a specific color. The color term may refer to human perception of that color (which is affected by visual context) which is usually defined according to the Munsell color system, or ...
s in the world's languages, green is only found as a separate category in languages with the fully developed range of six colors (white, black, red, green, yellow, and blue), or more rarely in systems with five colors (white, red, yellow, green, and black/blue). These languages have introduced supplementary vocabulary to denote "green", but these terms are recognizable as recent adoptions that are not in origin color terms (much like the English adjective
orange
Orange most often refers to:
*Orange (fruit), the fruit of the tree species '' Citrus'' × ''sinensis''
** Orange blossom, its fragrant flower
** Orange juice
*Orange (colour), the color of an orange fruit, occurs between red and yellow in the vi ...
being in origin not a color term but the name of a fruit). Thus, the
Thai word เขียว ''kheīyw'', besides meaning "green", also means "rank" and "smelly" and holds other unpleasant associations.
The
Celtic languages
The Celtic languages ( ) are a branch of the Indo-European language family, descended from the hypothetical Proto-Celtic language. The term "Celtic" was first used to describe this language group by Edward Lhuyd in 1707, following Paul-Yve ...
had a term for "blue/green/grey",
Proto-Celtic
Proto-Celtic, or Common Celtic, is the hypothetical ancestral proto-language of all known Celtic languages, and a descendant of Proto-Indo-European. It is not attested in writing but has been partly Linguistic reconstruction, reconstructed throu ...
''*glasto-'', which gave rise to
Old Irish
Old Irish, also called Old Gaelic (, Ogham, Ogham script: ᚌᚑᚔᚇᚓᚂᚉ; ; ; or ), is the oldest form of the Goidelic languages, Goidelic/Gaelic language for which there are extensive written texts. It was used from 600 to 900. The ...
''glas'' "green, grey" and to
Welsh ''glas'' "blue". This word is cognate with the Ancient Greek γλαυκός "bluish green", contrasting with χλωρός "yellowish green" discussed above.

In modern Japanese, the term for green is
緑, while the old term for "blue/green", now means "blue". But in certain contexts, green is still conventionally referred to as 青, as in and , reflecting the absence of blue-green distinction in old Japanese (more accurately, the
traditional Japanese color terminology grouped some
shades of green
Varieties of the color green may differ in hue, colorfulness, chroma (also called saturation or intensity) or lightness (or value, tone, or brightness), or in two or three of these qualities. Variations in value are also called tints and shad ...
with blue, and others with yellow tones).
In science
Color vision and colorimetry
In optics, the
perception
Perception () is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information or environment. All perception involves signals that go through the nervous syste ...
of green is evoked by light having a spectrum dominated by energy with a
wavelength
In physics and mathematics, wavelength or spatial period of a wave or periodic function is the distance over which the wave's shape repeats.
In other words, it is the distance between consecutive corresponding points of the same ''phase (waves ...
of roughly 495–570
nm. The sensitivity of the dark-adapted human eye is greatest at about 507 nm, a blue-green color, while the light-adapted eye is most sensitive about 555 nm, a yellow-green; these are the peak locations of the rod and cone (scotopic and photopic, respectively)
luminosity function
A luminous efficiency function or luminosity function represents the average spectral sensitivity of human visual perception of light. It is based on subjective judgements of which of a pair of different-colored lights is brighter, to describe re ...
s.
The perception of greenness (in opposition to redness forming one of the
opponent mechanisms in human
color vision
Color vision, a feature of visual perception, is an ability to perceive differences between light composed of different frequencies independently of light intensity.
Color perception is a part of the larger visual system and is mediated by a co ...
) is evoked by light which triggers the medium-wavelength ''M''
cone cell
Cone cells or cones are photoreceptor cells in the retina of the vertebrate eye. Cones are active in daylight conditions and enable photopic vision, as opposed to rod cells, which are active in dim light and enable scotopic vision. Most v ...
s in the eye more than the long-wavelength ''L'' cones. Light which triggers this greenness response more than the yellowness or blueness of the other color opponent mechanism is called green. A green light source typically has a spectral power distribution dominated by energy with a wavelength of roughly 487–570 nm.

Human eyes have color receptors known as cone cells, of which there are three types. In some cases, one is missing or faulty, which can cause
color blindness, including the common inability to distinguish red and yellow from green, known as
deuteranopia
Color blindness, color vision deficiency (CVD) or color deficiency is the decreased ability to see color or differences in color. The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color bl ...
or red-green color blindness.
[
]
Green is restful to the eye. Studies show that a green environment can reduce fatigue.
In the
subtractive color
Subtractive color or subtractive color mixing predicts the spectral power distribution of light after it passes through successive layers of partially absorbing media. This idealized model is the essential principle of how dyes and pigments are ...
system, used in painting and color printing, green is created by a combination of yellow and blue, or yellow and
cyan
Cyan () is the color between blue and green on the visible spectrum of light. It is evoked by light with a predominant wavelength between 500 and 520 nm, between the wavelengths of green and blue.
In the subtractive color system, or CMYK c ...
; in the
RGB color model
The RGB color model is an additive color, additive color model in which the red, green, and blue primary colors of light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials ...
, used on television and computer screens, it is one of the
additive primary colors
Primary colors are colorants or colored lights that can be mixed in varying amounts to produce a gamut of colors. This is the essential method used to create the perception of a broad range of colors in, e.g., electronic displays, color printin ...
, along with red and blue, which are mixed in different combinations to create all other colors. On the
HSV color wheel, also known as the
RGB color wheel
The RGB color model is an additive color model in which the red, green, and blue primary colors of light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three ad ...
, the
complement
Complement may refer to:
The arts
* Complement (music), an interval that, when added to another, spans an octave
** Aggregate complementation, the separation of pitch-class collections into complementary sets
* Complementary color, in the visu ...
of green is
magenta
Magenta () is a purple-red color. On color wheels of the RGB color model, RGB (additive) and subtractive color, CMY (subtractive) color models, it is located precisely midway between blue and red. It is one of the four colors of ink used in colo ...
; that is, a color corresponding to an equal mixture of
red
Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–750 nanometres. It is a primary color in the RGB color model and a seconda ...
and
blue
Blue is one of the three primary colours in the RYB color model, RYB colour model (traditional colour theory), as well as in the RGB color model, RGB (additive) colour model. It lies between Violet (color), violet and cyan on the optical spe ...
light (one of the
purple
Purple is a color similar in appearance to violet light. In the RYB color model historically used in the arts, purple is a secondary color created by combining red and blue pigments. In the CMYK color model used in modern printing, purple is ...
s). On a traditional color wheel, based on subtractive color, the complementary color to green is considered to be red.
[
]
In additive color devices such as computer displays and televisions, one of the
primary
Primary or primaries may refer to:
Arts, entertainment, and media Music Groups and labels
* Primary (band), from Australia
* Primary (musician), hip hop musician and record producer from South Korea
* Primary Music, Israeli record label
Work ...
light sources is typically a narrow-spectrum yellowish-green of dominant wavelength ≈550
nm; this "green" primary is combined with an orangish-red "red" primary and a purplish-blue "blue" primary to produce any color in between – the RGB color model. A
unique green (green appearing neither yellowish nor bluish) is produced on such a device by mixing light from the green primary with some light from the blue primary.
Lasers
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word ''laser'' originated as an acronym for light amplification by stimulated emission of radi ...
s emitting in the green part of the spectrum are widely available to the general public in a wide range of output powers. Green laser pointers outputting at 532
nm (563.5
THz) are relatively inexpensive compared to other wavelengths of the same power, and are very popular due to their good beam quality and very high apparent brightness. The most common green lasers use diode pumped solid state (
DPSS
A diode-pumped solid-state laser (DPSSL) is a solid-state laser made by pumping a solid gain medium, for example, a ruby or a neodymium-doped YAG crystal, with a laser diode.
DPSSLs have advantages in compactness and efficiency over other typ ...
) technology to create the green light.
[
]
An infrared
laser diode
file:Laser diode chip.jpg, The laser diode chip removed and placed on the eye of a needle for scale
A laser diode (LD, also injection laser diode or ILD or semiconductor laser or diode laser) is a semiconductor device similar to a light-emittin ...
at 808 nm is used to pump a crystal of neodymium-
doped yttrium vanadium oxide (Nd:YVO4) or neodymium-doped yttrium aluminium garnet (Nd:YAG) and induces it to emit 281.76 THz (1064 nm). This deeper infrared light is then passed through another crystal containing potassium, titanium and phosphorus (KTP), whose non-linear properties generate light at a frequency that is twice that of the incident beam (563.5 THz); in this case corresponding to the wavelength of 532 nm ("green").
[
]
Other green wavelengths are also available using DPSS technology ranging from 501 nm to 543 nm.
[
]
Green wavelengths are also available from
gas laser
A gas laser is a laser in which an electric current is discharged through a gas to produce coherent light. The gas laser was the first continuous-light laser and the first laser to operate on the principle of converting electrical energy to a las ...
s, including the
helium–neon laser
A helium–neon laser or He–Ne laser is a type of gas laser whose high energetic gain medium consists of a mixture of helium and neon (ratio between 5:1 and 10:1) at a total pressure of approximately 1 Torr (133.322 Pa) inside a small electr ...
(543 nm), the Argon-
ion laser
An ion laser is a gas laser that uses an ionized gas as its lasing medium.
Like other gas lasers, ion lasers feature a sealed cavity containing the laser medium and mirrors forming a Fabry–Pérot resonator. Unlike helium–neon lasers, th ...
(514 nm) and the Krypton-ion laser (521 nm and 531 nm), as well as liquid
dye laser
A dye laser is a laser that uses an organic dye as the lasing medium, usually as a liquid solution. Compared to gases and most solid state lasing media, a dye can usually be used for a much wider range of wavelengths, often spanning 50 to 100 n ...
s. Green lasers have a wide variety of applications, including pointing, illumination, surgery,
laser light shows,
spectroscopy
Spectroscopy is the field of study that measures and interprets electromagnetic spectra. In narrower contexts, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum.
Spectro ...
,
interferometry
Interferometry is a technique which uses the ''interference (wave propagation), interference'' of Superposition principle, superimposed waves to extract information. Interferometry typically uses electromagnetic waves and is an important inves ...
,
fluorescence
Fluorescence is one of two kinds of photoluminescence, the emission of light by a substance that has absorbed light or other electromagnetic radiation. When exposed to ultraviolet radiation, many substances will glow (fluoresce) with colore ...
,
holography
Holography is a technique that allows a wavefront to be recorded and later reconstructed. It is best known as a method of generating three-dimensional images, and has a wide range of other uses, including data storage, microscopy, and interfe ...
,
machine vision
Machine vision is the technology and methods used to provide image, imaging-based automation, automatic inspection and analysis for such applications as automatic inspection, process control, and robot guidance, usually in industry. Machine vision ...
,
non-lethal weapons
Non-lethal weapons, also called nonlethal weapons, less-lethal weapons, less-than-lethal weapons, non-deadly weapons, compliance weapons, or pain-inducing weapons are weapons intended to be lethality, less likely to kill a living target than c ...
, and
bird control.
As of mid-2011, direct green laser diodes at 510 nm and 500 nm have become generally available,
although the price remains relatively prohibitive for widespread public use. The efficiency of these lasers (peak 3%) compared to that of DPSS green lasers (peak 35%)
may also be limiting adoption of the diodes to niche uses.
Pigments, food coloring and fireworks
Many minerals provide
pigment
A pigment is a powder used to add or alter color or change visual appearance. Pigments are completely or nearly solubility, insoluble and reactivity (chemistry), chemically unreactive in water or another medium; in contrast, dyes are colored sub ...
s which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through
luminescent
Luminescence is a spontaneous emission of radiation from an electronically or vibrationally excited species not in thermal equilibrium with its environment. A luminescent object emits ''cold light'' in contrast to incandescence, where an objec ...
or
phosphorescent qualities. The large number of green pigments makes it impossible to mention them all. Among the more notable green minerals, however is the
emerald
Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium or sometimes vanadium.Hurlbut, Cornelius S. Jr., and Kammerling, Robert C. (1991). ''Gemology'', John Wiley & Sons, New York ...
, which is colored green by trace amounts of
chromium
Chromium is a chemical element; it has Symbol (chemistry), symbol Cr and atomic number 24. It is the first element in Group 6 element, group 6. It is a steely-grey, Luster (mineralogy), lustrous, hard, and brittle transition metal.
Chromium ...
and sometimes
vanadium
Vanadium is a chemical element; it has Symbol (chemistry), symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an ...
.
Chromium(III) oxide (Cr
2O
3), is called
chrome green
Chromium(III) oxide (or chromia) is an inorganic compound with the Chemical formula, formula . It is one of the principal oxides of chromium and is used as a pigment. In nature, it occurs as the rare mineral eskolaite.
Structure and properties
...
, also called
viridian
Viridian is a blue-green pigment, a hydrated chromium(III) oxide, of medium saturation and relatively dark in value. It is composed of a majority of green, followed by blue. The first recorded use of ''viridian'' as a color name in English wa ...
or institutional green when used as a pigment.
[ For many years, the source of ]amazonite
Amazonite, also known as amazonstone, is a green tectosilicate mineral, a variety of the potassium feldspar called microcline. Its chemical formula is KAlSi3O8, which is Polymorphism (materials science), polymorphic to orthoclase.
Its name is ta ...
's color was a mystery. Widely thought to have been due to copper
Copper is a chemical element; it has symbol Cu (from Latin ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orang ...
because copper compounds often have blue and green colors, the blue-green color is likely to be derived from small quantities of lead
Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleabl ...
and water in the feldspar
Feldspar ( ; sometimes spelled felspar) is a group of rock-forming aluminium tectosilicate minerals, also containing other cations such as sodium, calcium, potassium, or barium. The most common members of the feldspar group are the ''plagiocl ...
.
Copper is the source of the green color in malachite
Malachite () is a copper Carbonate mineral, carbonate hydroxide mineral, with the chemical formula, formula Basic copper carbonate, Cu2CO3(OH)2. This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often for ...
pigments, chemically known as basic copper(II) carbonate
Copper(II) carbonate or cupric carbonate is a chemical compound with formula . At ambient temperatures, it is an ionic solid (a salt) consisting of copper(II) cations and carbonate anions .
This compound is rarely encountered because it is dif ...
.
Verdigris
Verdigris () is a common name for any of a variety of somewhat toxic copper salt (chemistry), salts of acetic acid, which range in colour from green to a blue-green, bluish-green depending on their chemical composition.H. Kühn, Verdigris and Cop ...
is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. It was used by the Romans in the murals of Pompeii, and in Celtic medieval manuscripts as early as the 5th century AD. It produced a blue-green which no other pigment could imitate, but it had drawbacks: it was unstable, it could not resist dampness, it did not mix well with other colors, it could ruin other colors with which it came into contact, and it was toxic
Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacterium, or plant, as well as the effect on a subst ...
. Leonardo da Vinci
Leonardo di ser Piero da Vinci (15 April 1452 - 2 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially rested o ...
, in his treatise on painting, warned artists not to use it. It was widely used in miniature paintings in Europe and Persia in the 16th and 17th centuries. Its use largely ended in the late 19th century, when it was replaced by the safer and more stable chrome green
Chromium(III) oxide (or chromia) is an inorganic compound with the Chemical formula, formula . It is one of the principal oxides of chromium and is used as a pigment. In nature, it occurs as the rare mineral eskolaite.
Structure and properties
...
. Viridian, as described above, was patent
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...
ed in 1859. It became popular with painters, since, unlike other synthetic greens, it was stable and not toxic. Vincent van Gogh
Vincent Willem van Gogh (; 30 March 185329 July 1890) was a Dutch Post-Impressionist painter who is among the most famous and influential figures in the history of Western art. In just over a decade, he created approximately 2,100 artworks ...
used it, along with Prussian blue
Prussian blue (also known as Berlin blue, Brandenburg blue, Parisian and Paris blue) is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the chemical formula . It consists of cations, where iron is in the oxidat ...
, to create a dark blue sky with a greenish tint in his painting '' Café Terrace at Night''.[
]Green earth
Green earth, also known as terre verte and Verona green, is an inorganic pigment derived from the minerals celadonite and glauconite. Its chemical formula is . is a natural pigment used since the time of the Roman Empire
The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...
. It is composed of clay colored by iron oxide
An iron oxide is a chemical compound composed of iron and oxygen. Several iron oxides are recognized. Often they are non-stoichiometric. Ferric oxyhydroxides are a related class of compounds, perhaps the best known of which is rust.
Iron ...
, magnesium
Magnesium is a chemical element; it has Symbol (chemistry), symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 ...
, aluminum silicate
Aluminum silicate (or aluminium silicate) is a name commonly applied to chemical compounds which are derived from aluminium oxide, Al2O3 and silicon dioxide, SiO2 which may be anhydrous or hydrated, naturally occurring as minerals or synthetic. T ...
, or potassium
Potassium is a chemical element; it has Symbol (chemistry), symbol K (from Neo-Latin ) and atomic number19. It is a silvery white metal that is soft enough to easily cut with a knife. Potassium metal reacts rapidly with atmospheric oxygen to ...
. Large deposits were found in the South of France near Nice
Nice ( ; ) is a city in and the prefecture of the Alpes-Maritimes department in France. The Nice agglomeration extends far beyond the administrative city limits, with a population of nearly one million[Verona
Verona ( ; ; or ) is a city on the Adige, River Adige in Veneto, Italy, with 255,131 inhabitants. It is one of the seven provincial capitals of the region, and is the largest city Comune, municipality in the region and in Northeast Italy, nor ...]
, on Cyprus
Cyprus (), officially the Republic of Cyprus, is an island country in the eastern Mediterranean Sea. Situated in West Asia, its cultural identity and geopolitical orientation are overwhelmingly Southeast European. Cyprus is the List of isl ...
, and in Bohemia
Bohemia ( ; ; ) is the westernmost and largest historical region of the Czech Republic. In a narrow, geographic sense, it roughly encompasses the territories of present-day Czechia that fall within the Elbe River's drainage basin, but historic ...
. The clay was crushed, washed to remove impurities, then powdered. It was sometimes called Green of Verona.
Mixtures of oxidized cobalt
Cobalt is a chemical element; it has Symbol (chemistry), symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. ...
and zinc
Zinc is a chemical element; it has symbol Zn and atomic number 30. It is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic tabl ...
were also used to create green paints as early as the 18th century.
Cobalt green, sometimes known as Rinman's green or zinc green, is a translucent green pigment made by heating a mixture of cobalt (II) oxide and zinc oxide. Sven Rinman, a Swedish chemist, discovered this compound in 1780.
Green chrome oxide was a new synthetic green created by a chemist named Pannetier in Paris in about 1835. Emerald green was a synthetic deep green made in the 19th century by hydrating chrome oxide. It was also known as Guignet green.[
]
There is no natural source for green food coloring
Food coloring, color additive or colorant is any dye, pigment, or substance that imparts color when it is added to food or beverages. Colorants can be supplied as liquids, powders, gels, or pastes. Food coloring is commonly used in commercia ...
s which has been approved by the US Food and Drug Administration
The United States Food and Drug Administration (FDA or US FDA) is a List of United States federal agencies, federal agency of the United States Department of Health and Human Services, Department of Health and Human Services. The FDA is respo ...
. Chlorophyll, the E number
E numbers, short for Europe numbers, are codes for substances used as food additives, including those found naturally in many foods, such as vitamin C, for use within the European Union (EU) and European Free Trade Association (EFTA). Commonly ...
s E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials.
Quinoline Yellow (E104) is a commonly used coloring in the United Kingdom but is banned in Australia, Japan, Norway and the United States.
Green S (E142) is prohibited in many countries, for it is known to cause hyperactivity
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterised by symptoms of inattention, hyperactivity, impulsivity, and emotional dysregulation that are excessive and pervasive, impairing in multiple ...
, asthma
Asthma is a common long-term inflammatory disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and easily triggered bronchospasms. Symptoms include episodes of wh ...
, urticaria
Hives, also known as urticaria, is a kind of skin rash with red or flesh-colored, raised, itchy bumps. Hives may burn or sting. The patches of rash may appear on different body parts, with variable duration from minutes to days, and typically ...
, and insomnia
Insomnia, also known as sleeplessness, is a sleep disorder where people have difficulty sleeping. They may have difficulty falling asleep, or staying asleep for as long as desired. Insomnia is typically followed by daytime sleepiness, low ene ...
.
To create green sparks, firework
Fireworks are Explosive, low explosive Pyrotechnics, pyrotechnic devices used for aesthetic and entertainment purposes. They are most commonly used in fireworks displays (also called a fireworks show or pyrotechnics), combining a large numbe ...
s use barium
Barium is a chemical element; it has symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element.
Th ...
salts
In chemistry, a salt or ionic compound is a chemical compound consisting of an assembly of positively charged ions ( cations) and negatively charged ions (anions), which results in a compound with no net electric charge (electrically neutral). ...
, such as barium chlorate
Barium chlorate, Ba(ClO3)2, is the barium salt of chloric acid. It is a white crystalline solid, and like all soluble barium compounds, irritant and toxic. It is sometimes used in pyrotechnics to produce a green colour. It also finds use in t ...
, barium nitrate
Barium nitrate is the inorganic compound with the chemical formula Ba( NO3)2. It, like most barium salts, is colorless, toxic, and water-soluble. It burns with a green flame and is an oxidizer; the compound is commonly used in pyrotechnics.
Ma ...
crystals, or barium chloride
Barium chloride is an inorganic compound with the formula . It is one of the most common water-soluble salts of barium. Like most other water-soluble barium salts, it is a white powder, highly toxic, and imparts a yellow-green coloration to a flam ...
, also used for green fireplace logs.[ Copper salts typically burn blue, but ]cupric chloride
Copper(II) chloride, also known as cupric chloride, is an inorganic compound with the chemical formula . The monoclinic yellowish-brown anhydrous form slowly absorbs moisture to form the orthorhombic blue-green dihydrate , with two water molecule ...
(also known as "campfire blue") can also produce green flames.[ Green pyrotechnic flares can use a mix ratio 75:25 of ]boron
Boron is a chemical element; it has symbol B and atomic number 5. In its crystalline form it is a brittle, dark, lustrous metalloid; in its amorphous form it is a brown powder. As the lightest element of the boron group it has three ...
and potassium nitrate
Potassium nitrate is a chemical compound with a sharp, salty, bitter taste and the chemical formula . It is a potassium salt of nitric acid. This salt consists of potassium cations and nitrate anions , and is therefore an alkali metal nit ...
.[ Smoke can be turned green by a mixture: solvent yellow 33, solvent green 3, ]lactose
Lactose is a disaccharide composed of galactose and glucose and has the molecular formula C12H22O11. Lactose makes up around 2–8% of milk (by mass). The name comes from (Genitive case, gen. ), the Latin word for milk, plus the suffix ''-o ...
, magnesium carbonate
Magnesium carbonate, (archaic name magnesia alba), is an inorganic salt that is a colourless or white solid. Several hydrated and Base (chemistry), basic forms of magnesium carbonate also exist as minerals.
Forms
The most common magnesium car ...
plus sodium carbonate
Sodium carbonate (also known as washing soda, soda ash, sal soda, and soda crystals) is the inorganic compound with the formula and its various hydrates. All forms are white, odourless, water-soluble salts that yield alkaline solutions in water ...
added to potassium chlorate
Potassium chlorate is the inorganic compound with the molecular formula KClO3. In its pure form, it is a white solid. After sodium chlorate, it is the second most common chlorate in industrial use. It is a strong oxidizing agent and its most impor ...
.[
]
Biology
Plagiomnium affine laminazellen.jpeg, The chloroplasts of plant cells contain a high concentration of chlorophyll
Chlorophyll is any of several related green pigments found in cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words (, "pale green") and (, "leaf"). Chlorophyll allows plants to absorb energy ...
, making them appear green.
Caerulea3 crop.jpg, Frog
A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...
s often appear green because dermal
The dermis or corium is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from stress and strain. It is divided i ...
iridophores reflect blue light through a yellow upperlayer, filtering the light to be primarily green.
Yellow-naped Amazon.jpg, A yellow-naped Amazon parrot
Parrots (Psittaciformes), also known as psittacines (), are birds with a strong curved beak, upright stance, and clawed feet. They are classified in four families that contain roughly 410 species in 101 genus (biology), genera, found mostly in ...
, colored green for camouflage in the jungle
Micrommata virescens (Arcugnano).jpg, The green huntsman spider is green due to the presence of bilin pigments in the spider's hemolymph
Hemolymph, or haemolymph, is a fluid, similar to the blood in invertebrates, that circulates in the inside of the arthropod's body, remaining in direct contact with the animal's tissues. It is composed of a fluid plasma in which hemolymph c ...
and tissue fluids
Green is common in nature, as many plants are green because of a complex chemical known as chlorophyll, which is involved in photosynthesis
Photosynthesis ( ) is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their metabo ...
. Chlorophyll absorbs the long wavelengths of light (red) and short wavelengths of light (blue) much more efficiently than the wavelengths that appear green to the human eye, so light reflected by plants is enriched in green.
Chlorophyll absorbs green light poorly because it first arose in organisms living in oceans where purple halobacteria
Haloarchaea (halophilic archaea, halophilic archaebacteria, halobacteria) are a class (biology), class of prokaryotic archaea under the phylum Euryarchaeota, found in water Saturated and unsaturated compounds, saturated or nearly saturated with ...
were already exploiting photosynthesis. Their purple color arose because they extracted energy in the green portion of the spectrum using bacteriorhodopsin
Bacteriorhodopsin (Bop) is a protein used by Archaea, most notably by Haloarchaea, a class of the Euryarchaeota. It acts as a proton pump; that is, it captures light energy and uses it to move protons across the membrane out of the cell. The res ...
. The new organisms that then later came to dominate the extraction of light were selected to exploit those portions of the spectrum not used by the halobacteria.
Animals typically use the color green as camouflage
Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the b ...
, blending in with the chlorophyll green of the surrounding environment.[ Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue light coming through an over-layer of yellow pigment. Perception of color can also be affected by the surrounding environment. For example, broadleaf forests typically have a yellow-green light about them as the trees filter the light. Turacoverdin is one chemical which can cause a green hue in birds, especially.][ Invertebrates such as insects or mollusks often display green colors because of ]porphyrin
Porphyrins ( ) are heterocyclic, macrocyclic, organic compounds, composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (). In vertebrates, an essential member of the porphyrin group is heme, w ...
pigments, sometimes caused by diet. This can causes their feces to look green as well. Other chemicals which generally contribute to greenness among organisms are flavins
Flavins (from Latin ''flavus'', "yellow") refers generally to the class of organic compounds containing the tricyclic heterocycle isoalloxazine or its isomer alloxazine, and derivatives thereof. The biochemical source of flavin is the yellow B ...
(lychochromes) and hemanovadin. Humans have imitated this by wearing green clothing as a camouflage in military and other fields. Substances that may impart a greenish hue to one's skin include biliverdin
Biliverdin (from the Latin for green bile) is a green tetrapyrrolic bile pigment, and is a product of heme catabolism.Boron W, Boulpaep E. Medical Physiology: a cellular and molecular approach, 2005. 984–986. Elsevier Saunders, United States. ...
, the green pigment in bile
Bile (from Latin ''bilis''), also known as gall, is a yellow-green/misty green fluid produced by the liver of most vertebrates that aids the digestion of lipids in the small intestine. In humans, bile is primarily composed of water, is pro ...
, and ceruloplasmin
Ceruloplasmin (or caeruloplasmin) is a ferroxidase enzyme that in humans is encoded by the ''CP'' gene.
Ceruloplasmin is the major copper-carrying protein in the blood, and in addition plays a role in iron metabolism. It was first described in ...
, a protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residue (biochemistry), residues. Proteins perform a vast array of functions within organisms, including Enzyme catalysis, catalysing metab ...
that carries copper ion
An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by convent ...
s in chelation
Chelation () is a type of bonding of ions and their molecules to metal ions. It involves the formation or presence of two or more separate coordinate bonds between a polydentate (multiple bonded) ligand and a single central metal atom. These l ...
.
The green huntsman spider is green due to the presence of bilin pigments in the spider's hemolymph (circulatory system fluids) and tissue fluids.
It hunts insects in green vegetation, where it is well camouflaged.
Green eyes
There is no green pigment in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stroma, given by a low or moderate concentration of melanin
Melanin (; ) is a family of biomolecules organized as oligomers or polymers, which among other functions provide the pigments of many organisms. Melanin pigments are produced in a specialized group of cells known as melanocytes.
There are ...
, with the blue tone imparted by the Rayleigh scattering
Rayleigh scattering ( ) is the scattering or deflection of light, or other electromagnetic radiation, by particles with a size much smaller than the wavelength of the radiation. For light frequencies well below the resonance frequency of the scat ...
of the reflected light.
Nobody is brought into the world with green eyes. An infant has one of two eye hues: dark or blue. Following birth, cells called melanocytes start to discharge melanin, the earthy colored shade, in the child's irises. This begins happening since melanocytes respond to light in time.
Green eyes are most common in Northern and Central Europe
Central Europe is a geographical region of Europe between Eastern Europe, Eastern, Southern Europe, Southern, Western Europe, Western and Northern Europe, Northern Europe. Central Europe is known for its cultural diversity; however, countries in ...
.
They can also be found in Southern Europe
Southern Europe is also known as Mediterranean Europe, as its geography is marked by the Mediterranean Sea. Definitions of southern Europe include some or all of these countries and regions: Albania, Andorra, Bosnia and Herzegovina, Bulgaria, C ...
, West Asia
West Asia (also called Western Asia or Southwest Asia) is the westernmost region of Asia. As defined by most academics, UN bodies and other institutions, the subregion consists of Anatolia, the Arabian Peninsula, Iran, Mesopotamia, the Armenian ...
, Central Asia
Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The countries as a group are also colloquially referred to as the "-stans" as all have names ending with the Persian language, Pers ...
, and South Asia
South Asia is the southern Subregion#Asia, subregion of Asia that is defined in both geographical and Ethnicity, ethnic-Culture, cultural terms. South Asia, with a population of 2.04 billion, contains a quarter (25%) of the world's populatio ...
. In Iceland, 89% of women and 87% of men have either blue or green eye color.[
]
A study of Icelandic and Dutch adults found green eyes to be much more prevalent in women than in men.
In history and art
Prehistoric history
Neolithic cave paintings do not have traces of green pigments, but neolithic peoples in northern Europe did make a green dye for clothing, made from the leaves of the birch tree. It was of very poor quality, more brown than green. Ceramics from ancient Mesopotamia show people wearing vivid green costumes, but it is not known how the colors were produced.[Anne Vachiron (2000), ''Couleurs – pigments et teintures dans les mains des peuples'', p. 196]
Ancient history
Gardens of Nakh 1.JPG, The gardens of ancient Egypt were symbols of rebirth. Tomb painting of the gardens of Amon at the temple of Karnak, from the tomb of Nakh, the chief gardener. Early 14th century BC.
Osiris-tomb-of-Nefertari.jpg, The Ancient Egyptian god Osiris, ruler of the underworld and of rebirth and regeneration, was typically shown with a green face. (Tomb of Nefertari, 1295–1253 BC)
Primavera di Stabiae.jpg, Ancient Roman fresco of Flora, or Spring, from Stabiae (2nd century AD)
Gorgan ceramic.JPG, Gorgan ceramic, Early 13th century
In Ancient Egypt, green was the symbol of regeneration and rebirth, and of the crops made possible by the annual flooding of the Nile. For painting on the walls of tombs or on papyrus, Egyptian artists used finely ground malachite
Malachite () is a copper Carbonate mineral, carbonate hydroxide mineral, with the chemical formula, formula Basic copper carbonate, Cu2CO3(OH)2. This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often for ...
, mined in the west Sinai and the eastern desert; a paintbox with malachite pigment was found inside the tomb of King Tutankhamun. They also used less expensive green earth pigment, or mixed yellow ochre and blue azurite. To dye fabrics green, they first colored them yellow with dye made from saffron and then soaked them in blue dye from the roots of the woad plant.
For the ancient Egyptians, green had very positive associations. The hieroglyph for green represented a growing papyrus sprout, showing the close connection between green, vegetation, vigor and growth. In wall paintings, the ruler of the underworld, Osiris, was typically portrayed with a green face, because green was the symbol of good health and rebirth. Palettes of green facial makeup, made with malachite, were found in tombs. It was worn by both the living and the dead, particularly around the eyes, to protect them from evil. Tombs also often contained small green amulets in the shape of scarab beetles made of malachite, which would protect and give vigor to the deceased. It also symbolized the sea, which was called the "Very Green".
In Ancient Greece, green and blue were sometimes considered the same color, and the same word sometimes described the color of the sea and the color of trees. The philosopher Democritus described two different greens: , or pale green, and , or leek green. Aristotle considered that green was located midway between black, symbolizing the earth, and white, symbolizing water. However, green was not counted among the four classic colors of Greek painting – red, yellow, black and white – and is rarely found in Greek art.
The Romans had a greater appreciation for the color green; it was the color of Venus (mythology), Venus, the goddess of gardens, vegetables and vineyards. The Romans made a fine green earth pigment that was widely used in the wall paintings of Pompeii, Herculaneum, Lyon, Vaison-la-Romaine, and other Roman cities. They also used the pigment verdigris, made by soaking copper plates in fermenting wine. By the second century AD, the Romans were using green in paintings, mosaics and glass, and there were ten different words in Latin for varieties of green.
Postclassical history
Van Eyck - Arnolfini Portrait.jpg, In the ''Arnolfini portrait'' by Jan van Eyck (1434), the rich green fabric of the dress showed the wealth and status of the family.
Duccio di Buoninsegna 068.jpg, Duccio di Buoninsegna painted the faces in this painting (1308–1311) with an undercoat of green earth pigment. The surface pink has faded, making the faces look green today.
Mona Lisa, by Leonardo da Vinci, from C2RMF retouched.jpg, The green costume of the ''Mona Lisa
The ''Mona Lisa'' is a half-length portrait painting by the Italian artist Leonardo da Vinci. Considered an archetypal masterpiece of the Italian Renaissance, it has been described as "the best known, the most visited, the most written about, ...
'' shows she was from the gentry, not from the nobility.
Michael Pacher 004.jpg, In the 15th century ''Saint Wolfgang and the Devil'' by Michael Pacher, the Devil is green. Poets such as Chaucer also drew connections between the color green and the devil.
Pietro Perugino cat67a.jpg, In this 1503 painting by Perugino, malachite pigment was used to paint the bright green garments of the worshippers, while the background greens were painted in green earth pigments.
In the Middle Ages and Renaissance, the color of clothing showed a person's social rank and profession. Red could only be worn by the nobility, brown and gray by peasants, and green by merchants, bankers and the gentry and their families. The Mona Lisa
The ''Mona Lisa'' is a half-length portrait painting by the Italian artist Leonardo da Vinci. Considered an archetypal masterpiece of the Italian Renaissance, it has been described as "the best known, the most visited, the most written about, ...
wears green in her portrait, as does the bride in the Arnolfini portrait by Jan van Eyck.
There were no good vegetal green dyes which resisted washing and sunlight for those who wanted or were required to wear green. Green dyes were made out of the fern, Plantain (cooking), plantain, buckthorn berries, the juice of Urtica, nettles and of leeks, the digitalis plant, the broom (shrub), broom plant, the leaves of the fraxinus, or ash tree, and the bark of the alder tree, but they rapidly faded or changed color. Only in the 16th century was a good green dye produced, by first dyeing the cloth blue with woad, and then yellow with ''Reseda luteola'', also known as yellow-weed.
The pigments available to painters were more varied; monks in monasteries used verdigris, made by soaking copper in fermenting wine, to color medieval manuscripts. They also used finely-ground malachite, which made a luminous green. They used green earth colors for backgrounds.
During the early Renaissance, painters such as Duccio di Buoninsegna learned to paint faces first with a green undercoat, then with pink, which gave the faces a more realistic hue. Over the centuries the pink has faded, making some of the faces look green.
Modern history
In the 18th and 19th century
Constable DeadhamVale.jpg, ''Dedham Vale'' (1802) by John Constable. The paintings of Constable romanticized the vivid green landscapes of England
Jean-Baptiste Debret - Coroação de D. Pedro I.jpg, In the painting of Jean-Baptiste Debret (1822), Emperor Pedro I of Brazil wearing the imperial mantle decorated with green fabric.
Jean-Baptiste-Camille Corot 010.jpg, In the paintings of Jean-Baptiste-Camille Corot (1796–1875), the green of trees and nature became the central element of the painting, with the people secondary
Marie Bashkirtseff 2.jpg, ''Spring'', by Marie Bashkirtseff, 1884
Vincent Willem van Gogh 076.jpg, ''The Night Café'', (1888), by Vincent van Gogh
Vincent Willem van Gogh (; 30 March 185329 July 1890) was a Dutch Post-Impressionist painter who is among the most famous and influential figures in the history of Western art. In just over a decade, he created approximately 2,100 artworks ...
, used red and green to express what Van Gogh called "the terrible human passions."
Émile Bernard - Still life with teapot, cup and fruit - Google Art Project.jpg, Émile Bernard (painter), Émile Bernard – ''Still life with green teapot, cup and fruit'', 1890
Louis Anquetin - Woman at the Champs-Élysées by night - Google Art Project.jpg, Louis Anquetin – ''Woman at the Champs-Élysées by night''
The 18th and 19th centuries brought the discovery and production of synthetic green pigments and dyes, which rapidly replaced the earlier mineral and vegetable pigments and dyes. These new dyes were more stable and brilliant than the vegetable dyes, but some contained high levels of arsenic, and were eventually banned.
In the 18th and 19th centuries, green was associated with the romantic movement in literature and art. The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Painters such as John Constable and Jean-Baptiste-Camille Corot depicted the lush green of rural landscapes and forests. Green was contrasted to the smoky grays and blacks of the Industrial Revolution.
The second half of the 19th century saw the use of green in art to create specific emotions, not just to imitate nature. One of the first to make color the central element of his picture was the American artist James McNeill Whistler, who created a series of paintings called "symphonies" or "noctures" of color, including ''Symphony in gray and green; The Ocean'' between 1866 and 1872.
The late 19th century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh
Vincent Willem van Gogh (; 30 March 185329 July 1890) was a Dutch Post-Impressionist painter who is among the most famous and influential figures in the history of Western art. In just over a decade, he created approximately 2,100 artworks ...
. Describing his painting, The Night Café, The ''Night Cafe'', to his brother Theo in 1888, Van Gogh wrote: "I sought to express with red and green the terrible human passions. The hall is blood red and pale yellow, with a green billiard table in the center, and four lamps of lemon yellow, with rays of orange and green. Everywhere it is a battle and antithesis of the most different reds and greens."
In the 20th and 21st century
In the 1980s, green became a political symbol, the color of the Alliance '90/The Greens, Green Party in Germany and in many other European countries. It symbolized the environmental movement
The environmental movement (sometimes referred to as the ecology movement) is a social movement that aims to protect the natural world from harmful environmental practices in order to create sustainable living. In its recognition of humanity a ...
, and also a new politics of the left which rejected traditional socialism and communism. (See section below.)
Symbolism and associations
Safety and permission
Green can communicate safety to proceed, as in traffic lights.[Oxford English Dictionary] Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the following year, injuring the policeman who operated it. In 1912, the first modern electric traffic lights were put up in Salt Lake City, Utah. Red was chosen largely because of its high visibility, and its association with danger, while green was chosen largely because it could not be mistaken for red. Today green lights universally signal that a system is turned on and working as it should. In many video games, green signifies both Health (gaming), health and completed objectives, opposite red.
Nature, vivacity, and life
Green is the color most commonly associated in Europe and the United States with nature, vivacity and life.
It is the color of many environmental organizations, such as Greenpeace, and of the Green Parties in Europe. Many cities have designated a garden or park as a green space, and use green trash bins and containers. A green cross is commonly used to designate pharmacies in Europe.
In China, green is associated with the east, with sunrise, and with life and growth. In Thailand, the color green is considered wikt:auspicious, auspicious for those born on a Wednesday (light green for those born at night).
Springtime, freshness, and hope
Green is the color most commonly associated in the United States and Europe with springtime, freshness, and hope. Green is often used to symbolize rebirth and renewal and immortality. In Ancient Egypt; the god Osiris, king of the underworld, was depicted as green-skinned. Green as the color of hope is connected with the color of springtime; hope represents the faith that things will improve after a period of difficulty, like the renewal of flowers and plants after the winter season.
Youth and inexperience
Green the color most commonly associated in Europe and the United States with youth. It also often is used to describe anyone young, inexperienced, probably by the analogy to immature and unripe fruit. Examples include green cheese, a term for a fresh, unaged cheese, and Cowboy#Symbolism, greenhorn, an inexperienced person.
Food and diet
The color green has been increasingly used by food companies, governments, and practitioners themselves to identify veganism and vegetarianism. The government of India requires food that is vegetarian to be marked with a green circle as part of the ''Food Safety and Standards Act of 2006'' with changes to symbolism since but still maintaining the color green. In 2021, India introduced a green V to exclusively label vegan options. In the west, the V-Label, a green V designed by the European Vegetarian Union, has been used by food distributors to label vegan and vegetarian options.
Calm, tolerance, and the agreeable
Surveys also show that green is the color most associated with the calm, the agreeable, and tolerance. Red is associated with heat, blue with cold, and green with an agreeable temperature. Red is associated with dry, blue with wet, and green, in the middle, with dampness. Red is the most active color, blue the most passive; green, in the middle, is the color of neutrality and calm, sometimes used in architecture and design for these reasons.
Blue and green together symbolize harmony and balance. Experimental studies also show this calming effect in a statistical significant decrease of negative emotions
and increase of creative performance.
Jealousy and envy
Green is often associated with jealousy and envy
Envy is an emotion which occurs when a person lacks another's quality, skill, achievement, or possession and either desires it or wishes that the other lacked it. Envy can also refer to the wish for another person to lack something one already ...
. The expression "green-eyed monster" was first used by William Shakespeare in Othello: "it is the green-eyed monster which doth mock the meat it feeds on." Shakespeare also used it in the Merchant of Venice, speaking of "green-eyed jealousy".
Love and sexuality
Green today is not commonly associated in Europe and the United States with love and sexuality, but in stories of the Middle Ages, medieval period it sometimes represented love[Chamberlin, Vernon A. "Symbolic Green: A Time-Honored Characterizing Device in Spanish Literature." ''Hispania.'' 51.1 (Mar 1968) pp. 29–37] and the base, natural desires of man. It was the color of the Serpents in the Bible, serpent in the Garden of Eden who caused the downfall of Adam and Eve. However, for the troubadours, green was the color of growing love, and light green clothing was reserved for young women who were not yet married.
In Persian and Sudanese poetry, dark-skinned women, called "green" women, were considered erotic.[Carla N. Daughtry,]
Greenness in the Field
, ''Michigan Today'', University of Michigan, Fall 1997 The Chinese term for cuckold is "to wear a green hat." This was because in ancient China, prostitutes were called "the family of the green lantern" and a prostitute's family would wear a green headscarf.
In Victorian England, the color green was associated with homosexuality.
Dragons, fairies, monsters, and devils
Michael Pacher 004.jpg, ''Wolfgang of Regensburg, Saint Wolfgang and the Devil'', by Michael Pacher
Liber Floridus page scan A, ca. 1460.jpg, A medieval illustration of a dragon (1460)
Chinese draak.jpg, A Chinese dragon dance
Leprechaun ill artlibre jnl.png, A 20th-century depiction of a leprechaun
In legends, folk tales and films, fairies, dragons, monsters, and the devil are often shown as green.
In the Middle Ages, the devil was usually shown as either red, black or green. Dragons were usually green, because they had the heads, claws and tails of reptiles.
Modern Chinese dragons are also often green, but unlike European dragons, they are benevolent; Chinese dragons traditionally symbolize potent and auspicious powers, particularly control over water, rainfall, hurricane, and floods. The dragon is also a symbol of power, strength, and good luck. The Emperor of China usually used the dragon as a symbol of his imperial power and strength. The dragon dance is a popular feature of Chinese festivals.
In Irish folklore, Irish and English folklore, the color was sometimes associated with witchcraft, and with faeries and spirits.[Williams, Margaret. ''The Pearl Poet, His Complete Works''. Random House, 1967.] The type of Irish fairy known as a leprechaun is commonly portrayed wearing a green suit, though before the 20th century he was usually described as wearing a red suit.
In theater and film, green was often connected with monsters and the inhuman. The earliest films of Frankenstein were in black and white, but in the poster for the 1935 version ''The Bride of Frankenstein'', the monster had a green face. Actor Bela Lugosi wore green-hued makeup for the role of Dracula in the 1927–1928 Broadway stage production.
Poison and sickness
Like other common colors, green has several completely opposite associations. While it is the color most associated by Europeans and Americans with good health, it is also the color most often associated with toxicity
Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacteria, bacterium, or plant, as well as the effect o ...
and poison. There was a solid foundation for this association; in the nineteenth century several popular paints and pigments, notably verdigris, vert de Schweinfurt and vert de Paris, were highly toxic, containing copper or arsenic. The intoxicating drink absinthe was known as "the green fairy".
A green tinge in the skin is sometimes associated with nausea and sickness. The expression 'green at the gills' means appearing sick. The color, when combined with gold, is sometimes seen as representing the fading of youth. In some Far East cultures the color green is used as a symbol of sickness or nausea.
Social status, prosperity and the dollar
Hybrid Commons Chamber Rehearsal (D).jpg, The green benches in the House of Commons of the United Kingdom
United States one dollar bill, reverse.jpg, The reverse of the United States one-dollar bill has been green since 1861, giving it the popular name greenback.
Green in Europe and the United States is sometimes associated with status and prosperity. From the Middle Ages to the 19th century it was often worn by bankers, merchants country gentlemen and others who were wealthy but not members of the nobility. The benches in the House of Commons of the United Kingdom, where the landed gentry sat, are colored green.
In the United States green was connected with the dollar bill. Since 1861, the reverse side of the dollar bill has been green. Green was originally chosen because it deterred counterfeiters, who tried to use early camera equipment to duplicate banknotes. Also, since the banknotes were thin, the green on the back did not show through and muddle the pictures on the front of the banknote. Green continues to be used because the public now associates it with a strong and stable currency.
One of the more notable uses of this meaning is found in ''The Wonderful Wizard of Oz''. The Emerald City in this story is a place where everyone wears tinted glasses that make everything appear green. According to the populist interpretation of the story, the city's color is used by the author, L. Frank Baum, to illustrate the financial system of America in his day, as he lived in a time when America was debating the use of paper money versus gold.
On flags
* The flag of Italy (1797) was modeled after the French tricolor. It was originally the flag of the Cisalpine Republic, whose capital was Milan; red and white were the colors of Milan, and green was the color of the military uniforms of the army of the Cisalpine Republic. Other versions say it is the color of the Italian landscape, or symbolizes hope.
* The flag of Brazil has a green field adapted from the flag of the Empire of Brazil. The green represented the royal family.
* The flag of India was inspired by an earlier flag of the independence movement of Gandhi, which had a red band for Hinduism and a green band representing Islam, the second largest religion in India.
* The flag of Pakistan symbolizes Pakistan's commitment to Islam and equal rights of religious minorities where the larger portion (3:2 ratio) of flag is dark green representing Muslim majority (98% of total population) while a white vertical bar (3:1 ratio) at the mast representing equal rights for religious minorities and minority religions in country. The crescent and star symbolizes progress and bright future respectively.
* The flag of Bangladesh has a green field based on a similar flag used during the Bangladesh Liberation War of 1971. It consists of a red disc on top of a green field. The red disc represents the sun rising over Bengal, and also the blood of those who died for the independence of Bangladesh. The green field stands for the lushness of the land of Bangladesh.
* The flag of the international constructed language Esperanto has a green field and a green star in a white area. The green represents hope (''"esperanto"'' means "one who hopes"), the white represents peace and neutrality and the star represents the five inhabited continents.
Green is one of the three colors (along with red and black, or red and gold) of Pan-Africanism. Several African countries thus use the color on their flags, including Nigeria, South Africa, Ghana, Senegal, Mali, Ethiopia, Togo, Guinea, Benin, and Zimbabwe. The Pan-African colours, Pan-African colors are borrowed from the Flag of Ethiopia, Ethiopian flag, one of the oldest independent African countries. Green on some African flags represents the natural richness of Africa.
Many flags of the Muslim world, Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamism, Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national flag in the world with just one color and no design, insignia, or other details. Some countries used green in their flags to represent their country's lush vegetation, as in the flag of Jamaica, and hope in the future, as in the flags of flag of Portugal, Portugal and Nigeria. The green Cedrus libani, cedar of Lebanon tree on the Flag of Lebanon officially represents steadiness and tolerance.
Green is a symbol of Ireland, which is often referred to as the "Emerald Isle". The color is particularly identified with the Fianna Fáil, republican and nationalist traditions in modern times. It is used this way on the flag of the Republic of Ireland, in balance with white and the Protestant orange. Green is a strong trend in the Irish holiday Saint Patrick's Day, St. Patrick's Day.
In politics
Green harp flag of Ireland 17th century.svg, The green harp flag was the banner of Irish nationalism from the 17th century until the early 20th century.
AustralianGreensLogo official.svg, The emblem of the Australian Greens. The party won 12.7% of the primary vote in the 2022 Australian federal election, 2022 election for the Australian Senate.
Manif EPR Lyon Bellecour Verts.jpg, A demonstration by Europe Écologie–The Greens, Les Verts, the green party of France, in Lyon.
Greenpeace Rainbow warrior 2.jpg, The ''Rainbow Warrior (2011), Rainbow Warrior'', the ship of the Greenpeace environmental movement.
Logo Partai Bulan Bintang.svg, The logo of the Crescent Star Party (Indonesia), Crescent Star Party uses star and crescent symbol with green background.
The first recorded green party was a political faction in Constantinople during the 6th century Byzantine Empire. which took its name from a popular chariot racing team. They were bitter opponents of the blue faction, which supported Emperor Justinian I and which had its own chariot racing team. In 532 AD rioting between the factions began after one race, which led to the massacre of green supporters and the destruction of much of the center of Constantinople.[Edward Gibbon, ''The Decline and Fall of the Roman Empire'', Abridgement of D.M. Low, Harcourt Brace and Company, 1960, pp. 553–59] (See Nika Riots).
Green was the traditional color of Irish nationalism, beginning in the 17th century. The green harp flag, with a traditional gaelic harp, became the symbol of the movement. It was the banner of the Society of United Irishmen, which organized the ultimately unsuccessful Irish Rebellion of 1798. When Ireland achieved independence in 1922, green was incorporated into the Flag of Ireland, national flag.
In the 1970s, green became the color of the third biggest Swiss Federal Council political party, the Swiss People's Party SVP. The ideology is Swiss nationalism, national conservatism, right-wing populism, economic liberalism, agrarianism, isolationism, euroscepticism. The SVP was founded on September 22, 1971, and has 90,000 members.
In the 1980s, green became the color of a number of new European political parties organized around an agenda of environmentalism. Green was chosen for its association with nature, health, and growth. The largest green party in Europe is Alliance '90/The Greens (German: Bündnis 90/Die Grünen) in Germany, which was formed in 1993 from the merger of the German Green Party, founded in West Germany in 1980, and Alliance 90, founded during the Revolution of 1989–1990 in East Germany. In the 2009 federal elections, the party won 11% of the votes and 68 out of 622 seats in the Bundestag.
Green parties in Europe have programs based on ecology movement, ecology, grassroots democracy, nonviolence, and social justice. Green parties are found in over one hundred countries, and most are members of the Global Greens, Global Green Network.
Greenpeace is a non-governmental environmental organization which emerged from the anti-nuclear and peace movements in the 1970s. Its ship, the Rainbow Warrior (2011), Rainbow Warrior, frequently tried to interfere with nuclear tests and whaling operations. The movement now has branches in forty countries.
The Australian Greens was founded in 1992. In the 2010 federal election, the party received 13% of the vote (more than 1.6 million votes) in the Senate, a first for any Australian minor party.
Green is the color associated with Puerto Rico's Puerto Rican Independence Party, Independence Party, the smallest of that country's three major political parties, which advocates Puerto Rican independence from the United States.
In Indonesia, green is used by several Islamism, Islamist political party, including National Awakening Party, Crescent Star Party (Indonesia), Crescent Star Party, United Development Party, and the local Aceh Just and Prosperous Party.
In Taiwan, green is used by Democratic Progressive Party. Green in Taiwan associates with Taiwan independence movement.
In religion
Green is the traditional color of Islam. According to tradition, the robe and banner of Muhammad
Muhammad (8 June 632 CE) was an Arab religious and political leader and the founder of Islam. Muhammad in Islam, According to Islam, he was a prophet who was divinely inspired to preach and confirm the tawhid, monotheistic teachings of A ...
were green, and according to the Koran (XVIII, 31 and LXXVI, 21) those fortunate enough to live in paradise wear green silk robes.[John Gage (2006), La Couleur dans l'art, pp. 150–51] Muhammad is quoted in a hadith as saying that "water, greenery, and a beautiful face" were three universally good things. Green was accordingly adopted as a Shi'a color.
Al-Khidr ("The Green One"), was an important Qur'anic figure who was said to have met and traveled with Moses. He was given that name because of his role as a diplomat and negotiator. Green was also considered to be the median color between light and obscurity.
In Christianity, especially Roman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worshiped for their ability to maintain their color through the winter season. Romans used green holly and evergreen as decorations for their winter solstice celebration called Saturnalia, which eventually evolved into a Christmas celebration. In Ireland and Scotland especially, green is used to represent Catholics, while orange (color), orange is used to represent Protestantism. This is shown on the national flag of Ireland.
In Paganism, green represents abundance, growth, wealth, renewal, and balance. In Magic (supernatural), magickal practices, green is often used to bring money and luck. One figure who shares parallels with various deities is the Green Man.
In gambling and sports
Judo newaza.jpg, A green belt in judo.
Baccara Palette.jpg, A Baccarat (card game), baccarat palette and cards on a casino gambling table.
1929 Birkin Blower Bentley (Ralph Lauren's) at Lime Rock 2014.jpg, A 1929 Bentley colored British racing green.
Jean Béraud Le Billard.jpg, A billiards table, colored green after the lawns where the ancestors of the game were originally played.
* Gambling tables in a casino are traditionally green. The tradition is said to have started in gambling rooms in Venice in the 16th century.
* Billiards tables are traditionally covered with green woolen cloth. The first indoor tables, dating to the 15th century, were colored green after the grass courts used for the similar lawn games of the period.
* Green was the traditional color worn by hunters in the 19th century, particularly the shade called hunter green. In the 20th century most hunters began wearing the color olive drab, a shade of green, instead of hunter green.
* Green is a common color for sports teams. Well-known teams include A.S. Saint-Étienne of France, known as ''Les Verts'' (The Greens). The Green Bay Packers, an American football team, has the color in its official name and wears green uniforms. The NBA basketball team Boston Celtics is known for the green and white colors. In Israel, the green and white colors are identified with Maccabi Haifa F.C., a successful football club known as "The Greens". A number of national soccer teams feature the color, with the color usually reflective of the teams' national flag.
* British racing green was the international motor racing color of Britain from the early 1900s until the 1960s, when it was replaced by the colors of the sponsoring automobile companies.
* A green belt in karate, taekwondo, and judo symbolizes a level of proficiency in the sport.
Idioms and expressions
* Having a green thumb (American English) or green fingers (British English). To be passionate about or talented at gardening. The expression was popularized beginning in 1925 by a BBC gardening program.
* Greenhorn. Someone who is inexperienced.
* Green-eyed monster. Refers to jealousy. (See section above on jealousy and envy).
* Greenmail. A term used in finance and corporate takeovers. It refers to the practice of a company paying a high price to buy back shares of its own stock to prevent an unfriendly takeover by another company or businessman. It originated in the 1980s on Wall Street, and originates from the green of dollars.
* Green room. A room at a theater where actors rest when not onstage, or a room at a television studio where guests wait before going on-camera. It originated in the late 17th century from a room of that color at the Theatre Royal, Drury Lane in London.
* Greenwashing. Environmental activists sometimes use this term to describe the advertising of a company that promotes its positive environmental practices to cover up its environmental destruction.
* Green around the gills. A description of a person who looks physically ill.[''Oxford English Dictionary'']
* Going green. An expression commonly used to refer to preserving the natural environment, and participating in activities such as recycling materials.
* Looking green. A description of a person who looks revolted or repulsed.
See also
*Shades of green
*Green pigments
Notes
References
Cited texts
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External links
Green All Over
��slideshow by Life (magazine), ''Life'' magazine
{{authority control
Primary colors
Secondary colors
Optical spectrum
Rainbow colors
Shades of green,
Web colors
LGBTQ symbols