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]
Displayed at right is the web color dark slate gray.[6]
In human culture
Computers
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
The
SNew York City Subway service bullet, used in three out of the system's 28 services, is colored slate gray.
Military
The
Fleet Air Arm aircraft Temperate Day Scheme in the
World War Two was Dark Slate Grey over Extra Dark Sea Grey on top sides and Sky on undersides. This scheme was referred as "slime over sludge".
^RGB approximations of RYB tertiary colors, using cubic interpolation.
"RYB RGB conversion". Archived from
the original on 28 June 2013. Retrieved 29 December 2012. The colors displayed here are substantially paler than the true colors a mixture of paints would produce.
^William J. Miskella, 1928, Practical Color Simplified: A Handbook on Lacquering, Enameling, Coloring And Painting, pp.[page needed]
^John Lemos, 1920, "Color Charts for the School Room", in School Arts, vol. 19, pp. 580–584.
^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.