Cyan

Information about Cyan

This article is about the color. For other uses, see Cyan (disambiguation).

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Cyan (from Greek κυανός, meaning "blue") may be used as the name of any of a number of a range of colors in the blue/green part of the spectrum. In reference to the visible spectrum cyan is used to refer to the color obtained by mixing equal amounts of green and blue light or the removal of red from white light. As such, cyan is the complement of red in RGB and CMYK color systems: cyan pigments absorb red light.

Cyan is also called aqua. Cyan used to be called blue-green. The name "cyan" for printer's cyan has been in use since 1889. ^[1]

Some shades of color close to cyan in the cyan color range are baby blue, turquoise and aquamarine.

Variations of cyan

Electric cyan (web color aqua)

Cyan (additive secondary)
<imagemap>Image:Information-silk.png\|About these coordinates rect 0 0 50 50 About these coordinates desc none</imagemap>— Color coordinates —
Hex triplet		#00FFFF
RGB^B	(r, g, b)	(0, 255, 255)
HSV	(h, s, v)	(180°, 100%, 100%)
Source		X11
B: Normalized to [0–255] (byte)

The vivid cyan that is seen on an electronic display device (shown at right) is also referred to as electric cyan to distinguish it from the less vivid turquoise-like process cyan used in color printing (shown below). (Note: while the color is defined by definite RGB values, the display of the color will vary depending on the absolute color space used and the nature of the physical display device, e.g. computer monitor, and if this page is printed it is likely that the color shown will be far from representative.)

The web color aqua is an alias for electric cyan, i.e., it is exactly the same color.

To reproduce electric cyan in inks, it is necessary to add some white ink to the printer's cyan below, so when it is reproduced in printing, it is not a primary subtractive color. It is called aqua (a name in use since 1598) because it is a color commonly associated with water, such as the appearance of the water at a tropical beach. ^[2] .

Process cyan (pigment cyan) (printer's cyan)

Cyan (subtractive primary)
<imagemap>Image:Information-silk.png\|About these coordinates rect 0 0 50 50 About these coordinates desc none</imagemap>— Color coordinates —
Hex triplet		#00B7EB
RGB^B	(r, g, b)	(0, 180, 247)
HSV	(h, s, v)	(180°, 100%, 100 %)
Source		[1] CMYK
B: Normalized to [0–255] (byte)

Cyan is also one of the common inks used in four-color printing, along with magenta, yellow, and black; this set of colors is referred to as CMYK.

While both the additive secondary and the subtractive primary are called cyan, they can be substantially different from one another. Cyan printing ink can be more saturated or less saturated than the RGB secondary cyan, depending on what RGB color space and ink are considered.

Process cyan is not an RGB color, and there is no fixed conversion from CMYK primaries to RGB. Different formulations are used for printer's ink, so there can be variations in the printed color that is pure cyan ink. A typical formulation of process cyan is shown in the color box at right. The source of the color shown at right is the color cyan that is shown in the diagram located at the bottom of the following website offering tintbooks for CMYK printing: [2].

Variations of Cyan

Light Sea Green

Light Sea Green
<imagemap>Image:Information-silk.png\|About these coordinates rect 0 0 50 50 About these coordinates desc none</imagemap>— Color coordinates —
Hex triplet		#20B2AA
RGB^B	(r, g, b)	(32, 178, 170)
HSV	(h, s, v)	(175°, 40%, 75 %)
Source		X11
B: Normalized to [0–255] (byte)

At right is displayed the web color light sea green.

Dark Cyan

Dark Cyan
<imagemap>Image:Information-silk.png\|About these coordinates rect 0 0 50 50 About these coordinates desc none</imagemap>— Color coordinates —
Hex triplet		#008B8B
RGB^B	(r, g, b)	(0, 139, 139)
HSV	(h, s, v)	(180°, 24%, 100 %)
Source		X11
B: Normalized to [0–255] (byte)

At right is displayed the web color dark cyan.

Spectral reflectance curve of cyan

spectral reflectance curve

Cyan in nature

Pure water is colorless, but due to scattering can appear to be blue or cyan.
Cyanobacteria (sometimes called blue-green algae) are an important link in the food chain.
Cyanide derives its name from Prussian blue, a blue pigment containing the cyanide ion.

Cyan in human culture

Alternative energy

Blue Green Pacific is a company in Northern California that manufactures small wind turbines to power individual homes. ^[3]

Architecture

Cyan colored tiles are often used to pave swimming pools to make the water within them seem more inviting to swim in, by making the cyan color of their water seem more intensely colored. Water in swimming pool is colored a bright tint of cyan anyway because chlorine bleach, which is cyan, is added to water in swimming pools for disinfection.

Astronomy

The planet Uranus is cyan.

Business

The logo of the Pacific Gas and Electric Company is a dark cyan color.

Computer Games

There is a computer game company called Cyan Worlds (a.k.a., Cyan, Inc.).

Film

There is a Final Fantasy VI character named Cyan Garamonde.

Interior Design and Industrial Design

The color cyan (called aqua by interior designers) was commonly used in the interior design of the 1950s in combination with either magenta or pink and black to give a modern feel to interiors (These colors were also popular for automobiles in the 1950s.).

Medical

Cyanosis is an abnormal blueness of the skin, usually a sign of poor oxygen intake.

Music

There is a band called Cyan, a British progressive rock band from the 1980s and 1990s.

Panelology

Cyan is the name of a character in the Norwegian comic strip Nemi.

Parapsychology

People with luminous blue-green (i.e., the color now called electric cyan) auras are said to be capable of ”deep sympathy and compassion, with the power of perfect adaptability”. ^[4]

Photography

Cyanotype, or blueprint, a monochrome photographic printing process that predates the use of the word cyan as a color, yields a deep cyan-blue colored print based on the Prussian blue pigment.^[5]

Religion

In Catholic Christianity cyan represents the deadly sin Sloth.

Sexuality

In the bandana code of the gay leather subculture, wearing a process cyan colored bandana means that one is into the fetish of aquaphilia.

References

1. ^ Merriam Webster's College Dictionary, 10th Edition, 1994, see under entry "cyan".
2. ^ Maerz and Paul The Dictionary of Color 1930 (see under Aqua in Index, Page 189)
3. ^ Web site of Blue Green Pacific:
4. ^ Arthur E. Powell The Astral Body and Other Astral Phenomenon Wheaton, Illinois:1927—Theosophical Publishing House Page 12
5. ^ Mike Ware (1999). Cyanotype: the history, science and art of photographic printing in Prussian blue. NMSI Trading Ltd. ISBN 1900747073.

• • [ e] The Electromagnetic Spectrum
Visible (optical) spectrum	(Sorted by wavelength, short to long) Gamma ray • X-ray • Ultraviolet • Visible spectrum • Infrared • Terahertz radiation • Microwave • Radio waves
Microwave spectrum	W band • V band • K band: K_a band, K_u band • X band • C band • S band • L band
Radio spectrum	EHF • SHF • UHF • VHF • HF • MF • LF • VLF • ULF • SLF • ELF
Wavelength designations	Microwave • Shortwave • Mediumwave • Longwave


Alice blue	Aqua	Aquamarine	Baby blue	Bondi blue	Cerulean	Cyan	Electric blue	Pine green	Robin egg blue	Teal	Turquoise	Viridian

Cyan can mean:

Cyan, a color between green and blue
The Final Fantasy VI character Cyan Garamonde
The computer game company Cyan Worlds (a.k.a., Cyan, Inc.

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Greek}}}
Writing system: Greek alphabet
Official status
Official language of: Greece
Cyprus
European Union
recognised as minority language in parts of:
European Union
Italy
Turkey
Regulated by:
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spectrum (plural spectra) is a condition that is not limited to a specific set of values but can vary infinitely within a continuum. The word saw its first scientific use within the field of optics to describe the rainbow of colors in visible light when separated using a
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visible spectrum (or sometimes optical spectrum) is the portion of the electromagnetic spectrum that is visible to (can be detected by) the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light.
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Color or colour^[1] (see spelling differences) is the visual perceptual property corresponding in humans to the categories called red, yellow, blue, black, etc.
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Green is a color, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 520–570 nm. It is considered one of the additive primary colors.
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The term blue may refer to any of a number of similar colours. The sensation of blue is made by light having a spectrum dominated by energy in the wavelength range of about 440–490 nm.
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Light is electromagnetic radiation of a wavelength that is visible to the eye (visible light). In a scientific context, the word "light" is sometimes used to refer to the entire electromagnetic spectrum.
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Complementary colors are pairs of colors that are of “opposite” hue in some color model. The exact hue “complementary” to a given hue depends on the model in question, and perceptually uniform, additive, and subtractive color models, for example, have
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Red is any of a number of similar colors evoked by light consisting predominantly of the longest wavelengths of light discernible by the human eye, in the wavelength range of roughly 625–750 nm.
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RGB color model is an additive model in which red, green, and blue (often used in additive light models) are combined in various ways to reproduce other colors. The name of the model and the abbreviation ‘RGB’ come from the three primary colors, red, green, and blue and
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CMYK (short for cyan, magenta, yellow, and key (black), and often referred to as process color or four color) is a subtractive color model, used in color printing, also used to describe the printing process itself.
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pigment is a material that changes the color of light it reflects as the result of selective color absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which the material itself emits light.
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Aqua is an alternative name of the color cyan, used mostly by graphic designers and other computer-related professionals such as web designers.

Aqua in human culture

Graphic design

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19th century - 20th century
1850s 1860s 1870s - 1880s - 1890s 1900s 1910s
1886 1887 1888 - 1889 - 1890 1891 1892

:
Subjects: Archaeology - Architecture -
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Baby blue is a lighter shade of cyan. It is known as a pastel color. Baby blue is identical to the X11 web color light cyan.

The first recorded use of baby blue as a color name in English was in 1892.
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Turquoise is a slightly greenish shade of cyan. The color is based on the gem turquoise. The term comes from the French for Turkish.

The first recorded use of Turquoise as a color name in English was in 1573.
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Aquamarine is a color, a shade between green and cyan. It is named after the mineral aquamarine. There is a Crayola crayon with this color, created in 1958.

The first recorded use of aquamarine as a color name in English was in 1598.
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HSL and HSV (also called HSB) are two related representations of points in an RGB color space, which attempt to describe perceptual color relationships more accurately than RGB, while remaining computationally simple.
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Hue is one of the three main attributes of perceived color, in addition to lightness and chroma (or colorfulness). Hue is also one of the three dimensions in some colorspaces along with saturation, and brightness (also known as lightness or value).
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colorfulness, chroma, and saturation are related concepts referring to the intensity of a specific color. More technically, colorfulness is the perceived difference between the color of some stimulus and gray, chroma
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Brightness is an attribute of visual perception in which a source appears to emit a given amount of light. In other words, brightness is the perception elicited by the luminance of a visual target. This is a subjective attribute/property of an object being observed.
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Electronics is the study of the flow of charge through various materials and devices such as, semiconductors, resistors, inductors, capacitors, nano-structures, and vacuum tubes. All applications of electronics involve the transmission of power and possibly information.
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display device, also known as an information display is a device for visual or tactile presentation of images (including text) acquired, stored, or transmitted in various forms.
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Color printing is the reproduction of an image or text in color (as opposed to simpler black and white or monochrome printing).

The method used to print a full range of colors (colour - UK), such as for reproducing a color photograph, is referred to as
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