Slate gray

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File:St Fagans Tannery 7.jpg
Slate roof
Slate as a tertiary color
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  purple
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  slate[1]
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  green

Slate gray is a gray color with a slight azure tinge that is a representation of the average color of the material slate. As a tertiary color, slate is an equal mix of purple and green pigments.[2][3]

Slaty, referring to this color, is often used to describe birds.

The first recorded use of slate gray as a color name in English was in 1705.[4]

Variations

Light slate gray

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Dark slate gray

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In human culture

Computers

File:Thinking machines cm2.jpg
Mid-1980s supercomputer Thinking Machines CM-1 (the Connection Machine) at the Computer History Museum in Mountain View, California. One of the face plates has been partially removed to show the circuit boards inside.
File:Roadrunner supercomputer HiRes.jpg
IBM Roadrunner supercomputer—the fastest supercomputer in the world in May 2008, it could operate at a speed of 1.026 petaflops
  • The exterior shells of supercomputers are often colored various shades of slate gray.
  • The iPhone 5 and the iPad Mini comes in a dark slate gray colored aluminum body contrasted with black.
  • Western Electric used the term SLATE for the color instead of gray in their 25-pair (and multiples) cable for pairs 5-10-15-20-25.

Transportation

File:NYCS-bull-trans-S.svg
The New York City Subway shuttle bullet, used on three New York City Subway shuttle services.

Military

  • The Fleet Air Arm aircraft Temperate Day Scheme in the World War Two was dark slate gray over extra dark sea gray on top sides and Sky on undersides. This scheme was referred as "slime over sludge".

See also

References

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  1. RGB approximations of RYB tertiary colors, using cubic interpolation.Script error: No such module "citation/CS1". The colors displayed here are substantially paler than the true colors a mixture of paints would produce.
  2. William J. Miskella, 1928, Practical Color Simplified: A Handbook on Lacquering, Enameling, Coloring And Painting, pp.Script error: No such module "Unsubst".
  3. John Lemos, 1920, "Color Charts for the School Room", in School Arts, vol. 19, pp. 580–584.
  4. Maerz and Paul. A Dictionary of Color. New York: 1930. McGraw-Hill. Page 204; Color Sample of Slate Gray: Page 51, Plate 14, Color Sample A2.
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