Slate gray

{{Short description|Color}} {{Use dmy dates|date=November 2022}} {{infobox color | title=Slate gray | hex=708090 | source=X11 | isccname=Grayish blue}} thumb|Slate roof {| class="infobox" style="width:22em;" |+ Slate as a tertiary color |- |{{legend|#800080|purple}} |{{legend|#708090|'''slate'''<ref>RGB approximations of RYB tertiary colors, using cubic interpolation.{{cite web |url=http://www.paintassistant.com/rybrgb.html |title=RYB RGB conversion |accessdate=2012-12-29 |url-status=dead |archiveurl=https://web.archive.org/web/20130628074235/http://www.paintassistant.com/rybrgb.html |archivedate=28 June 2013 }} The colors displayed here are substantially paler than the true colors a mixture of paints would produce.</ref>}} |{{legend|#66B032|green}} |}

'''Slate gray''' is a moderate shade of gray with a slight azure tinge, which represents the average color of slate, a metamorphic rock often used in stonemasonry. As a tertiary color, slate is an equal mix of purple and green pigments.<ref>William J. Miskella, 1928, ''Practical Color Simplified: A Handbook on Lacquering, Enameling, Coloring And Painting'', pp.{{page needed|date=June 2016}}</ref><ref>John Lemos, 1920, "Color Charts for the School Room", in ''School Arts'', vol. 19, pp. 580–584.</ref>

'''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.<ref>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.</ref> __TOC__{{clear right}}

==Variations==

===Light slate gray=== {{infobox color |title=Light slate gray |hex=778899 |source=X11 |isccname=Grayish blue}} Displayed at right is the web color '''light slate gray'''.<ref>{{cite web|url=http://www.colorhexa.com/778899|title=Light slate gray|publisher=ColorHexa.com|access-date=14 January 2014|archive-date=5 January 2024|archive-url=https://web.archive.org/web/20240105162342/https://www.colorhexa.com/778899|url-status=live}}</ref> {{-}}

===Dark slate gray=== {{infobox color |title=Dark slate gray |hex=2F4F4F |source=X11 |isccname=Dark bluish green}} Displayed at right is the web color '''dark slate gray'''.<ref>{{cite web|url=http://www.colorhexa.com/2f4f4f|title=Dark slate gray|publisher=ColorHexa.com}}</ref> {{-}}

==In human culture== '''Computers''' [[File:Thinking machines cm2.jpg|thumb|150px|left|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|thumb|IBM Roadrunner supercomputer—the fastest supercomputer in the world in May 2008, it could operate at a speed of 1.026 petaflops|right|175px]] * 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|thumb|150px|right|The New York City Subway shuttle bullet, used on three New York City Subway shuttle services.]] * The S New York City Subway service bullet, used in three out of the system's {{NYCS const|routes}} services, is colored slate gray. '''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== * Shades of gray ** Cadet gray

==References== {{reflist}}

Category:Tertiary colors Category:Shades of gray