Royal blue is a deep and vivid shade of

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 ...

. It is said to have been created by a consortium of mills in

Rode, Wiltshire Rode (formerly Road) is a village and civil parish in the ceremonial county of Somerset in England, north-east of Frome and south-west of Trowbridge. The small settlement of Rode Hill, north-east of Rode village, is now contiguous with it. ...

(in

Somerset Somerset ( , ), Archaism, archaically Somersetshire ( , , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by the Bristol Channel, Gloucestershire, and Bristol to the north, Wiltshire to the east ...

as of 1937), which won a competition to make a robe for

Queen Charlotte Charlotte of Mecklenburg-Strelitz (Sophia Charlotte; 19 May 1744 – 17 November 1818) was Queen of Great Britain and Ireland as the wife of King George III from their marriage on 8 September 1761 until her death in 1818. The Acts of Un ...

, consort of

King George III George III (George William Frederick; 4 June 173829 January 1820) was King of Great Britain and King of Ireland, Ireland from 25 October 1760 until his death in 1820. The Acts of Union 1800 unified Kingdom of Great Britain, Great Britain and ...

. In winning the prize, a business in the village invented the dye and received a certificate to sell it under that name.

Brightness

The ''

Oxford English Dictionary The ''Oxford English Dictionary'' (''OED'') is the principal historical dictionary of the English language, published by Oxford University Press (OUP), a University of Oxford publishing house. The dictionary, which published its first editio ...

'' defines "royal blue" as "a deep vivid blue", while the ''

Cambridge English Dictionary The ''Cambridge Advanced Learner's Dictionary'' (abbreviated ''CALD'') is a British dictionary of the English language. It was first published in 1995 under the title ''Cambridge International Dictionary of English'' by the Cambridge Univers ...

'' defined it as "a strong, bright blue colour", and the ''

Collins English Dictionary The ''Collins English Dictionary'' is a printed and online dictionary of English. It is published by HarperCollins in Glasgow. It was first published in 1979. Corpus The dictionary uses language research based on the Collins Corpus, which is ...

'' defines it as "a deep blue colour". US dictionaries give it as further towards purple, e.g. "a deep, vivid reddish or purplish blue" (''Webster's New World College Dictionary'') or "a vivid purplish blue" (''Merriam-Webster''). By the 1950s, many people began to think of royal blue as a brighter color, and it is this brighter color that was chosen as the

web color Web most often refers to: * Spider web, a silken structure created by the animal * World Wide Web or the Web, an Internet-based hypertext system Web, WEB, or the Web may also refer to: Computing * WEB, a literate programming system created by D ...

"royal blue" (the web colors when they were formulated in 1987 were originally known as the

X11 colors In computing, on the X Window System, X11 color names are represented in a simple text file, which maps certain strings to RGB color values. It was traditionally shipped with every X11 installation, hence the name, and is usually located in ''< ...

). The

World Wide Web Consortium The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working together in ...

designated the keyword "royalblue" to be this much brighter color, rather than the traditional darker version of royal blue.

Cree Inc. Wolfspeed, Inc. is an American developer and manufacturer of wide-bandgap semiconductors, focused on silicon carbide and gallium nitride materials and devices for power and radio frequency applications such as transportation, power supplies, po ...

uses the term Royal Blue to describe

light emitting diode A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresp ...

s in the wavelength range 450–465

nanometers 330px, Different lengths as in respect to the molecular scale. The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm), or nanometer (American and British English spelling differences#-r ...

, slightly shorter than the regular blue range of 465–485 nanometers.

Variations

Queen blue

Queen blue is a medium tone of royal blue. The first recorded use of ''queen blue'' as a color name in

English English usually refers to: * English language * English people English may also refer to: Culture, language and peoples * ''English'', an adjective for something of, from, or related to England * ''English'', an Amish ter ...

was in 1926. Before that, since 1661, this color had been called ''queen's blue''.

Imperial blue

Imperial blue is recorded as an alternative name for the traditional royal blue color above. The name is also used for a distinct, medium blue color by Pantone.

In culture

Literature Literature is any collection of Writing, written work, but it is also used more narrowly for writings specifically considered to be an art form, especially novels, Play (theatre), plays, and poetry, poems. It includes both print and Electroni ...

* The color appears as the title of the book ''

Red, White & Royal Blue ''Red, White & Royal Blue'' is an LGBT literature, LGBT romance novel by American author Casey McQuiston, originally published on May 14, 2019, by St Martin's Griffin. It centers on the character of Alex Claremont-Diaz, a First Family of the Uni ...

'' by

Casey McQuiston Casey McQuiston (born January 21, 1991) is an American author of romance novels in the new adult fiction genre, best known for their ''New York Times'' best-selling debut novel '' Red, White & Royal Blue'', in which the son of America's first fe ...

in reference to the prince of England.

Auto racing Auto racing (also known as car racing, motor racing, or automobile racing) is a motorsport involving the racing of automobiles for competition. In North America, the term is commonly used to describe all forms of automobile sport including non ...

* In auto racing, royal blue (called 'imperial blue') is the traditional color of

Ford Ford commonly refers to: * Ford Motor Company, an automobile manufacturer founded by Henry Ford * Ford (crossing), a shallow crossing on a river Ford may also refer to: Ford Motor Company * Henry Ford, founder of the Ford Motor Company * Ford F ...

and

Carroll Shelby Carroll Hall Shelby (January 11, 1923 – May 10, 2012) was an American automotive designer, racing driver, and entrepreneur. Shelby was involved with the AC Cobra and Ford Mustang, Mustang for Ford Motor Company. With driver Ken Miles, he dev ...

, and for 2012, the primary livery for

Hendrick Motorsports Hendrick Motorsports is an American professional auto racing organization that competes in the NASCAR Cup Series. The team was founded in 1984 as All-Star Racing by Rick Hendrick. Hendrick Motorsports has won a NASCAR-record 316 Cup Series ra ...

' #48 sponsored by

Lowe's Lowe's Companies, Inc. ( ) is an American retail company specializing in home improvement. Headquartered in Mooresville, North Carolina, the company operates a chain of retail stores in the United States. As of October 28, 2022, Lowe's and i ...

Flag A flag is a piece of textile, fabric (most often rectangular) with distinctive colours and design. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design employed, and fla ...

s * Royal blue is an official color used in the

flag A flag is a piece of textile, fabric (most often rectangular) with distinctive colours and design. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design employed, and fla ...

s of

American Samoa American Samoa is an Territories of the United States, unincorporated and unorganized territory of the United States located in the Polynesia region of the Pacific Ocean, South Pacific Ocean. Centered on , it is southeast of the island count ...

Cayman Islands The Cayman Islands () is a self-governing British Overseas Territories, British Overseas Territory, and the largest by population. The territory comprises the three islands of Grand Cayman, Cayman Brac and Little Cayman, which are located so ...

, 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 ...

, Galicia,

Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...

Israel Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...

Tuvalu Tuvalu ( ) is an island country in the Polynesian subregion of Oceania in the Pacific Ocean, about midway between Hawaii and Australia. It lies east-northeast of the Santa Cruz Islands (which belong to the Solomon Islands), northeast of Van ...

, Scotland and the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

. * The

Flag of the Philippines The national flag of the Philippines () is a horizontal List of flags by design#Bicolour, bicolor flag with equal bands of royal blue and Crimson, crimson red, with a white, equilateral chevron at the Glossary of vexillology#Flag elements, hois ...

uses a royal blue field, which is normally displayed over the

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 ...

field, to signify a state of peace. Reversing this arrangement (i.e. red above blue) transforms the flag into the nation's

war ensign A naval ensign is an ensign (maritime flag) used by naval ships of various countries to denote their nationality. It can be the same or different from a country's civil ensign or state ensign. It can also be known as a war ensign. A large vers ...

Australian rules football Australian football, also called Australian rules football or Aussie rules, or more simply football or footy, is a contact sport played between two teams of 18 players on an Australian rules football playing field, oval field, often a modified ...

* Royal blue is the primary colour of the guernseys for the

North Melbourne Football Club The North Melbourne Football Club, nicknamed the Kangaroos or colloquially the Roos, is a professional Australian rules football club. The men's team competes in the Australian Football League (AFL), and the women's team in the AFL Women's (AF ...

Football Football is a family of team sports that involve, to varying degrees, kick (football), kicking a football (ball), ball to score a goal (sports), goal. Unqualified, football (word), the word ''football'' generally means the form of football t ...

* Royal blue is the official colour of the shirts of

Birmingham City F.C. Birmingham City Football Club is a professional football club based in Birmingham, England. Formed in 1875 as Small Heath Alliance, it was renamed Small Heath in 1888, Birmingham in 1905, and Birmingham City in 1943. The team compete in the ...

, whose nickname in consequence is Blues. * Royal blue is the colour of the shirts of

FC Schalke 04 Fußballclub Gelsenkirchen-Schalke 04 e. V., commonly known as Schalke 04 (), and abbreviated as S04 (), is a professional sports club from the Schalke district of Gelsenkirchen, North Rhine-Westphalia. It is best known for its football team, ...

and also one of their nicknames. * Royal blue is the colour of the shirts of

Everton F.C. Everton Football Club () is a professional association football club based in Liverpool, England. The club competes in the Premier League, the top tier of English football. Founded in 1878, the club was a founding member of the Football Lea ...

and The Blues is one of their nicknames. * Royal blue is the colour of the shirts of Glasgow Rangers F.C. * Royal blue is the traditional colour of

GNK Dinamo Zagreb Građanski nogometni klub Dinamo Zagreb (), commonly referred to as simply Dinamo Zagreb (), is a Croatian professional association football, football Football team, club based in Zagreb. Dinamo play their home matches at Stadion Maksimir. They ...

and is also one of their nicknames (Modri, Plavi in the

Croatian language Croatian (; ) is the standard language, standardised Variety (linguistics)#Standard varieties, variety of the Serbo-Croatian pluricentric language mainly used by Croats. It is the national official language and literary standard of Croatia, o ...

American football American football, referred to simply as football in the United States and Canada and also known as gridiron football, is a team sport played by two teams of eleven players on a rectangular American football field, field with goalposts at e ...

* Royal blue is the primary color of the uniforms for the

Buffalo Bills The Buffalo Bills are a professional American football team based in the Buffalo–Niagara Falls metropolitan area. The Bills compete in the National Football League (NFL) as a member of the American Football Conference (AFC) AFC East, East div ...

and

Los Angeles Rams The Los Angeles Rams are a professional American football team based in the Greater Los Angeles, Greater Los Angeles area. The Rams compete in the National Football League (NFL) as a member of the National Football Conference (NFC) NFC West, West ...

of the

NFL The National Football League (NFL) is a professional American football league in the United States. Composed of 32 teams, it is divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The N ...

Ice hockey Ice hockey (or simply hockey in North America) is a team sport played on ice skates, usually on an Ice rink, ice skating rink with Ice hockey rink, lines and markings specific to the sport. It belongs to a family of sports called hockey. Tw ...

* Royal blue is the primary color of the uniforms for many

NHL The National Hockey League (NHL; , ''LNH'') is a professional ice hockey league in North America composed of 32 teams25 in the United States and 7 in Canada. The NHL is one of the major professional sports leagues in the United States and Cana ...

teams, including the

Buffalo Sabres The Buffalo Sabres are a professional ice hockey team based in Buffalo, New York. The Sabres compete in the National Hockey League (NHL) as a member of the Atlantic Division (NHL), Atlantic Division in the Eastern Conference (NHL), Eastern Con ...

Edmonton Oilers The Edmonton Oilers are a professional ice hockey team based in Edmonton. The Oilers compete in the National Hockey League (NHL) as a member of the Pacific Division (NHL), Pacific Division in the Western Conference (NHL), Western Conference. Th ...

New York Islanders The New York Islanders (colloquially known as the Isles) are a professional ice hockey team based in Elmont, New York. The Islanders compete in the National Hockey League (NHL) as a member of the Metropolitan Division in the Eastern Conference (N ...

New York Rangers The New York Rangers are a professional ice hockey team based in New York City. The Rangers compete in the National Hockey League (NHL) as a member of the Metropolitan Division in the Eastern Conference (NHL), Eastern Conference. The team plays ...

St. Louis Blues The St. Louis Blues are a professional ice hockey team based in St. Louis. The Blues compete in the National Hockey League (NHL) as a member of the Central Division (NHL), Central Division in the Western Conference (NHL), Western Conference. Th ...

, and

Vancouver Canucks The Vancouver Canucks are a professional ice hockey team based in Vancouver. The Canucks compete in the National Hockey League (NHL) as a member of the Pacific Division (NHL), Pacific Division in the Western Conference (NHL), Western Conferenc ...

Uniform A uniform is a variety of costume worn by members of an organization while usually participating in that organization's activity. Modern uniforms are most often worn by armed forces and paramilitary organizations such as police, emergency serv ...

s * When, in 2008, 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 ...

Transportation Security Administration The Transportation Security Administration (TSA) is an agency of the United States Department of Homeland Security (DHS) that has authority over the security of transportation systems within and connecting to the United States. It was created ...

changed the color of airport screener

uniform A uniform is a variety of costume worn by members of an organization while usually participating in that organization's activity. Modern uniforms are most often worn by armed forces and paramilitary organizations such as police, emergency serv ...

s from

white White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...

to royal blue, they found that it made the work of the airport screeners easier because airline passengers became more compliant, apparently because by wearing blue, the airport screeners came to be perceived more as

authority figure Authority is commonly understood as the legitimate power of a person or group of other people. In a civil state, ''authority'' may be practiced by legislative, executive, and judicial branches of government,''The New Fontana Dictionary of Mo ...

s.Uniform Market News July 2008
/ref>

University A university () is an educational institution, institution of tertiary education and research which awards academic degrees in several Discipline (academia), academic disciplines. ''University'' is derived from the Latin phrase , which roughly ...

* Imperial blue is the brand colour of the Imperial College London, which is used through all college communications. * Royal blue is the brand colour of

Yonsei University Yonsei University () is a Private university, private Christian university, Christian research university located in Seoul, South Korea. Yonsei is one of the three most prestigious universities in the country, part of a group referred to as SK ...

, used in its emblem, flag, and various university designs.

References