Grey


Grey
Grey/Gray
Color icon gray v2.svg
 — Common connotations —
depression, boredom, neutrality, undefinedness, old age, contentment and speed
About these coordinates

— Color coordinates —

Hex triplet #808080
sRGBB (r, g, b) (128, 128, 128)
HSV (h, s, v) (--°, 0%, 50%)
Source HTML/CSS[1]
B: Normalized to [0–255] (byte)

Grey or gray is an achromatic or neutral color.

Complementary colors are defined to mix to grey, either additively or subtractively, and many color models place complements opposite each other in a color wheel. To produce grey in RGB displays, the R, G, and B primary light sources are combined in proportions equal to that of the white point. In four-color printing, greys are produced either by the black channel, or by an approximately equal combination of CMY primaries. Images which consist wholly of neutral colors are called monochrome, black-and-white or greyscale.

The first recorded use of grey as a color name in the English language was in AD 700.[2] Grey is the British spelling, whereas either gray or grey is acceptable American spelling, though gray was also in common usage in the UK until the second half of the 20th century.[3]

Contents

In colour theory

Most grey pigments have a cool or warm cast to them, as the human eye can detect even a minute amount of saturation.[citation needed] Yellow, orange, and red create a "warm grey". Green, blue, and violet create a "cool grey".[4] When there is no cast at all, it is referred to as "neutral grey", "achromatic grey" or simply "grey".

Grays.svg
Warm grey Cool grey
Mixed with 6% yellow. Mixed with 6% blue.

Some extensive colour charts refer to "gray" and "grey" as different colours; "grey" (#D3D3D3) is considerably lighter than "gray" (#808080). Interestingly, only "gray" is recognized as a colour in some browsers. In addition, many people see "grey" as an actual silver-like colour, while seeing "gray" as a range of colours between white and black.[5]

Two colours are called complementary colors if grey is produced when they are combined additively. Grey is its own complement.

Web colors

There are several tones of grey available for use with HTML and CSS in word form, while there are 254 true greys available through Hex triplet. All are spelled with an a: using the e spelling can cause unexpected errors (this spelling was inherited from the X11 color list), and to this day, Internet Explorer's Trident browser engine does not recognize "grey" and will render it as green. Another anomaly is that "gray" is in fact much darker than the X11 color marked "darkgray"; this is because of a conflict with the original HTML grey and the X11 grey, which is closer to HTML's "silver". The three "slategray" colors are not themselves on the greyscale, but are slightly saturated towards cyan (green + blue). Note that since there are an even (256, including black and white) number of unsaturated tones of grey, there are actually two grey tones straddling the midpoint in the 8-bit greyscale. The color name "gray" has been assigned the lighter of the two shades (128 also known as #808080), due to rounding up.

HTML Color Name Sample Hex triplet
(rendered by name) (rendered by hex triplet)
gainsboro #DCDCDC
lightgray #D3D3D3
gray #808080
darkgray #A9A9A9
dimgray #696969
lightslategray #778899
slategray #708090
darkslategray #2F4F4F

Color coordinates

RGB
Grey values result when r = g = b, for the color (r, g, b)
CMYK
Grey values are produced by c = m = y = 0, for the color (c, m, y, k). Lightness is adjusted by varying k. In theory, any mixture where c = m = y is neutral, but in practice such mixtures are often a muddy brown (see discussion on this topic).
HSL and HSV 
Achromatic greys have no hue, so the h code is marked as "undefined" using a dash: -- ; greys also result whenever s is 0 or undefined, as is the case when v is 0 or l is 0 or 1

See also

References

  1. ^ W3C TR CSS3 Color Module, HTML4 color keywords Archived 14 December 2010 at WebCite
  2. ^ Maerz and Paul A Dictionary of Color New York:1930 McGraw-Hill Page 196
  3. ^ Marianne Celce-Murcia, Donna Brinton, and Janet M. Goodwin (1996). Teaching pronunciation: a reference for teachers of English to speakers of other languages. Cambridge University Press. p. 282. ISBN 9780521406949. http://books.google.com/books?id=twC-H4a8VcYC&pg=PA282. 
  4. ^ Color Palette Archived 14 December 2010 at WebCite
  5. ^ "How do you spell the color Grey or Gray?". Grey or Gray. http://www.greyorgray.com/. Retrieved 30 September 2011. 

External links


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Look at other dictionaries:

  • Grey — ist eine Bezeichnung für Personen des Familiennamens Grey, siehe Grey (Familienname) eine Teesorte, siehe Earl Grey (Tee) die weltweit agierende Werbeagentur Grey Global Group, siehe auch Grey Group Germany Grey County in Ontario, Kanada ein… …   Deutsch Wikipedia

  • Grey —   [greɪ], Gray [greɪ], englisches Geschlecht normannischer Herkunft; führt seinen Namen auf die französische Stadt Gray (Département Haute Saône) zurück. Bedeutende Vertreter:    1) Charles, 2. Earl of, britischer Politiker, * Fallodon (heute… …   Universal-Lexikon

  • grey — [greɪ] especially BrE , gray adjective [only before a noun] ECONOMICS COMMERCE grey trade involves buying goods from someone abroad who is not an official supplier and selling them at a price which is lower than that charged for goods from an… …   Financial and business terms

  • grey — grey; grey·cing; grey·lag; grey·hound; grey·ly; grey·ness; …   English syllables

  • grey — (US gray) ► ADJECTIVE 1) of a colour intermediate between black and white, as of ashes or lead. 2) (of hair) turning grey or white with age. 3) (of the weather) cloudy and dull; without sun. 4) dull and nondescript: grey, faceless men. 5) not… …   English terms dictionary

  • GREY (C.) — GREY CHARLES (1764 1845) Originaire d’une grande famille aristocratique anglaise, qui lui vaut d’hériter en 1807 du titre de comte, député du comté de Northumberland à vingt deux ans, Charles Grey fut pendant toute sa carrière politique un… …   Encyclopédie Universelle

  • Grey — Grey, a. See {Gray} (the correct orthography). [1913 Webster] …   The Collaborative International Dictionary of English

  • Grey [2] — Grey (spr. grē), anglonormann. Adelsfamilie, die im 11. Jahrh. in Oxfordshire und seit dem 13. auch in Northumberland ansässig war. Aus ihr sind seit dem 18. Jahrh. mehrere namhafte Staatsmänner hervorgegangen, die fast sämtlich der liberalen… …   Meyers Großes Konversations-Lexikon

  • Grey — (Gray), de Grey (spr. greh), altes engl. Adelsgeschlecht normann. Ursprungs. Henry de G., dritter Marquis von Dorset, heiratete Frances Brandon, Tochter des Herzogs von Suffolk und Maria Tudors, und wurde 1551 Herzog von Suffolk. – Seine Tochter …   Kleines Konversations-Lexikon

  • grey — is the dominant form in BrE, although gray is also used in AmE. In an unusually long note the OED (1901) recorded that ‘an enquiry by Dr. Murray in Nov. 1893 elicited a large number of replies, from which it appeared that in Great Britain the… …   Modern English usage

  • grey — (plural greyes) sustantivo femenino 1. Uso/registro: literario. Rebaño. 2. En la Iglesia católica, conjunto de fieles atendidos por un sacerdote o pastor espiritual. 3. Uso/registro: re …   Diccionario Salamanca de la Lengua Española


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