Capri or deep sky blue is a deep shade of

sky blue Sky blue refers to a collection of shades comparable to that of a clear daytime sky. Typically it is a shade of cyan or light teal, though some iterations are closer to light Azure (color), azure or light blue. The term (as "sky blew") is atte ...

which is 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 azure on the color wheel. The color Capri in general is named for the color of the

Mediterranean Sea The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Eur ...

around the island of

Capri Capri ( , ; ) is an island located in the Tyrrhenian Sea off the Sorrento Peninsula, on the south side of the Gulf of Naples in the Campania region of Italy. A popular resort destination since the time of the Roman Republic, its natural beauty ...

off

Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...

, the site of several villas belonging to the Roman Emperor

Tiberius Tiberius Julius Caesar Augustus ( ; 16 November 42 BC – 16 March AD 37) was Roman emperor from AD 14 until 37. He succeeded his stepfather Augustus, the first Roman emperor. Tiberius was born in Rome in 42 BC to Roman politician Tiberius Cl ...

, including his Imperial residence in his later years, the '' Villa Jovis''. Specifically, the color Capri is named after the color of the Blue Grotto on the island of Capri, as it appears on a bright sunny day. The first use of ''Capri'' as a color name in English was in 1920.Maerz and Paul ''A Dictionary of Color'' New York:1930 McGraw-Hill Page 191 The

normalized color coordinates Normalization or normalisation refers to a process that makes something more normal or regular. Science * Normalization process theory, a sociological theory of the implementation of new technologies or innovations * Normalization model, used in v ...

for Capri are identical to deep sky blue, which was formalized as a color in the

X11 color names 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 ''< ...

over 1985–1989.

References

Quaternary colors Shades of blue Shades of cyan Capri, Campania {{colour-stub