The Gray reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Gray

Gray (spelled grey in Commonwealth English) is a color seen commonly in nature. It is created by mixing white and black in different proportions. Depending on the amount of light, the human eye can interpret the same object as either gray or some other colour.

Two colors are called complementary colors if they make gray when combined. The psychological primary colors are:

Black and White

Blue and Yellow

Red and Green

Other sets of complementary colors include

Orange and Sea blue

Lime and Purple

And of course, gray is its own complement. In an afterimage, which can be seen after seeing the picture for about 30 seconds, the colors will switch to their complements.

Table of contents

1 Usage, symbolism and colloquial expressions 2 Color coordinates 3 Other meanings:

Usage, symbolism and colloquial expressions

• 'Gray life', meaning mere existence without much sense or goal.
• Gray was used as the colour of the uniforms of Confederate soldiers during the American Civil War, as opposed to the blue uniforms of Union soldiers.
• In a moral sense gray is either used
  • pejoratively to describe situations that have no clear moral value, or
  • positively to balance an all-black or all-white view (i.e. shades of gray = magnitudes of good/bad)
• Gray is associated with autumn, bad weather, and sadness.
• The hair becomes gray as one ages, and hence gray is associated with senior citizens, as inspired the name of the Gray Panthers.
• The substance that composes the brain is referred to as 'gray matter', and for that reason the color is associated with things intellectual.

Color coordinates

• RGB:
  • R: 128
  • G: 128
  • B: 128

• All the grey values in greyscale can be made

when

• CMYK:
  • C: 0
  • M: 0
  • Y: 0
  • K: 128

• All the grey values in greyscale can be made by

• whereby .
  
  

  In theory it is also possible to achieve a grayscale with perfect inks when:

• whereby 
  
  

  HSV:
  • H: 0
  • S: 0
  • V: 50

• All the grey values in greyscale can be made by

whereby  .

hex triplet:#808080 (see: hex triplet on how to convert the greyscale from rgb into hex triplets)

Colors White | Gray | Black Red | Orange | Yellow | Green | Blue | Indigo | Violet Aquamarine | Brown | Gold | Coral | Crimson | Cyan | Magenta | Maroon | Ochre | Pink | Purple

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Other meanings:

• Gray (unit) the absorbed dose of radiation.
• Gray, France is a town in France.
• Grey District, New Zealand is a district around the town of Greymouth, New Zealand, named after the Grey River, New Zealand.
• Grey River, Newfoundland
• The Grey Range is a mountain range in Australia.
• The Grays are supposed extraterrestrial beings that are part of various conspiracy theories.
• Gray, Georgia, United States of America
• Gray, Maine, United States of America

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