GREY

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'Grey' or 'gray' (see spelling differences) is a color between white and black. It is a color seen commonly in nature and fashion. In pigment,it is created by mixing complementary colors (that is colors directly opposite on the color wheel, e.g. yellow and violet). In light, or additive color, it is created by adding equal amounts of red light, green light, and blue light,(RGB) with R,G,B greater than 0% and less than 100% (greater than 0 and less than 255, in the 8-bit notation commonly used in computing). Depending on the color temperature of the light (measured in kelvins of a black body radiator), the human eye can interpret the same object as either grey or some other color, with light of a colder color temperature adding a yellow-orange hue and light of a warmer color temperature adding a blue hue.

Contents

Grey in color theory

Web colors

Color coordinates

Grey in human culture

See also

References

Grey in color theory

Most grey pigments have a cool or warm cast to them, as the human eye can also detect even a minute amount of saturation. Yellow, orange and red will create a "warm grey". Green, blue, or purple, will create a "cool grey".^[2] When no cast at all, it is referred to as "neutral grey" or simply "grey".

'WARM GREY'	'COOL GREY'
Mixed with 6% yellow.	Mixed with 6% blue.

Two colors are called complementary colors if grey is produced when two colors are combined. Grey is its own complement. Consequently, grey remains grey when its color spectrum is inverted, and therefore has no opposite, or alternately is its own opposite.
Artists sometimes use the two different spellings to distinguish between strict combinations of black and white versus combinations that do have elements of hue.

Web colors

There are several shades of grey available for use with HTML and CSS. All are spelled with an 'a': this can cause unexpected errors (this discrepancy is inherited from the X11 color list). Note that the three "slategray" colors are not themselves on the greyscale, but are slightly saturated towards cyan (green + blue).

HTML Color Name Sample Hex triplet (rendered by name) (rendered by hex triplet) lightgrey #D3D3D3 gray #808080 darkgray #A9A9A9 dimgray #696969 lightslategray #77'8899' slategray #70'8090' darkslategray #2F'4F4F'

Color coordinates

; RGB : All the grey values in greyscale are solutions of the inequality:
::$0\; le\; (\; R\; =\; G\; =\; B\; )\; le\; 255$
;CMYK : All the grey values in greyscale are solutions of the inequality:
::$0\; le\; K\; le\; 255$ when $C\; =\; M\; =\; Y\; =\; 0\; ,$.
:In theory it is also possible to achieve a greyscale with perfect inks when:
::$C\; =\; M\; =\; Y\; ,$ and $K\; =\; 0\; ,$
;HSL : All the grey values in greyscale fit one of the following three equalities:
::$S=0$ or $L=0$ (black) or $L=1$ (white).
;HSV : All the grey values in greyscale are solutions of the inequality:
::$0\; le\; V\; le\; 1$ when $H\; =\; S\; =\; 0\; ,$ .

Grey in human culture

'Environmentalism'

★ ''Greys'' has been used pejoritavely by environmentalists to describe technophiles as being those who like granite, concrete and other city materials, as opposed to using the term "greens" to describe those in favor of environmentalism.
'Ethics'

★ In a moral sense gray is either used

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★ pejoratively to describe situations that have no clear moral value, or

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★ positively to balance an all-black or all-white view (for example, shades of gray = magnitudes of good/bad).
'Folklore'

★ In folklore, grey is often associated with goblin folk of several kinds. Scandinavian folklore often depicts their gnomes and nisser in grey clothing. This is partly because of their association with dusk, partly because these races, including elves (see below), often are outside moral standards (black or white).
'Gerontology'

★ Whilst the hair actually becomes white as one ages, it is often misinterpreted as grey (white next to others colors looking comparatively darker), and hence grey is associated with the elderly, and has inspired the name of the Gray Panthers and expressions such as Grey pound.
'Journalism'

★ The "Grey Lady" is the nickname of the New York Times
'Literature'

★ In J. R. R. Tolkien's works:

★
★ Gandalf is called the Grey Pilgrim.

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★ The Grey Havens

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★ The Grey Elves

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★ Ered Mithrin, the Grey Mountains. Tolkien chose the color grey from folklore tradition mentioned above.

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★ The Noldor and the Dúnedain typically have grey eyes.

★ In Michael Ende's ''Momo'', the ''men in grey'' are malicious spirits who prey on people's time and trick them into "saving" it.

★ In Don DeLillo's 1985 novel White Noise, the inventor of Dylar is at first only referred to as Mr. Gray.

★ In The T
★ Witches series, those of magical power are described as having grey eyes.

★ The Brenin Llwyd, the eponymous antagonist of The Grey King, by Susan Cooper.

★ Rand al'Thor of Robert Jordan's Wheel of Time is described as having grey eyes
'Military'

★ Grey was the color of the Confederate Army uniforms in the American Civil War.

★ Feldgrau (field grey) was a common colour of Wehrmacht uniforms.

★ Urban camouflage is composed of patches of shades of grey, while woodland camouflage uses ranges of brown and green.
'Nanotechnology'

★ Grey goo refers to a hypothetical end-of-the-world scenario involving molecular nanotechnology in which out-of-control self-replicating robots consume all living matter on Earth while building more of themselves (a scenario known as ecophagy). ^[3]
'Nazi Germany'

★ Martin Bormann was called the grey eminence (a phrase which originated as a description of François Leclerc du Tremblay, the French monk who served as advisor to Cardinal de Richelieu) because as the executive secretary to Adolf Hitler, he amassed great power behind the scene due to the fact that he was the one who controlled access to the Führer. ^[4]
'Neurology'

★ The substance that composes the brain is referred to as "grey matter", and for that reason the color is associated with things intellectual.
'Parapsychology'

★ It has been asserted that those who are suffering from the mental illness of depression have grey auras. ^[5]
'Parties'

★ A "grey person" is someone who goes unnoticed, a wallflower.
'Psychology'

★ The color grey represents pessimism whereas its opposite, optimism, is represented by the color rose.

★ A concept that is in a Grey area is a concept about which one is unsure what category in which to place it.
'Religion'

★ In the Christian religion, grey is the color of ashes, and therefore a biblical symbol of mourning and repentance, described as sackcloth and ashes. It can be used during Lent or on special days of fasting and prayer.
'Sociology'

★ Grey symbolizes mediocrity, the background noise of society.
'Sonics'

★ Grey noise is random noise subjected to a psychoacoustic equal loudness curve (such as an ''inverted'' A-weighting curve) over a given range of frequencies, giving the listener the perception that it is equally loud at all frequencies.
'Television'

★ The Grey Council consists of the nine leaders of the Minbari in the Babylon 5 universe.
'UFOs'

★ Tiny grey aliens, with large, tear-shaped black eyes are referred to as "little greys" in popular UFO conspiracy theories and in science-fiction.

See also

★ List of colors

★ Payne's grey

★ Davy's grey

★ Grisaille

★ Black and White Photography

References

1. W3C TR CSS3 Color Module, HTML4 color keywords
2. [1]
3.
4. Martin Bormann—The Grey Eminence:
5. Arthur E. Powell ''The Astral Body and Other Astral Phenomenon'' Wheaton, Illinois:1927—Theosophical Publishing House Page 12