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Slate gray

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Slate gray
About these coordinatesColor coordinates
Hex triplet#708090
sRGBB(r,g,b)(112, 128, 144)
HSV(h,s,v)(210°, 22%, 56%)
CIELChuv(L,C,h)(53, 17, 239°)
SourceX11
ISCC–NBS descriptorGrayish blue
B:Normalized to [0–255] (byte)
Slate roof
Slate as a tertiary color
purple
slate[1]
green

Slate grayis agraycolor with a slightazuretinge that is a representation of the average color of the materialslate.As atertiary 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 ofslate grayas a color name in English was in 1705.[4]

Variations

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Light slate gray

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Light slate gray
About these coordinatesColor coordinates
Hex triplet#778899
sRGBB(r,g,b)(119, 136, 153)
HSV(h,s,v)(210°, 22%, 60%)
CIELChuv(L,C,h)(56, 19, 239°)
SourceX11
ISCC–NBS descriptorGrayish blue
B:Normalized to [0–255] (byte)

Displayed at right is the web colorlight slate gray.[5]

Dark slate gray

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Dark slate gray
About these coordinatesColor coordinates
Hex triplet#2F4F4F
sRGBB(r,g,b)(47, 79, 79)
HSV(h,s,v)(180°, 41%, 31%)
CIELChuv(L,C,h)(31, 14, 192°)
SourceX11
ISCC–NBS descriptorDark bluish green
B:Normalized to [0–255] (byte)

Displayed at right is the web colordark slate gray.[6]

In human culture

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Computers

Mid-1980s supercomputer Thinking Machines CM-1 (theConnection Machine) at theComputer History MuseuminMountain View,California. One of the face plates has been partially removed to show the circuit boards inside.
IBM Roadrunnersupercomputer—the fastest supercomputer in the worldin May 2008, it could operate at a speed of 1.026petaflops
  • The exterior shells ofsupercomputersare often colored various shades of slate gray.
  • TheiPhone 5and theiPad Minicomes 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 New York City Subway shuttle bullet, used on threeNew York City Subway shuttle services.
  • TheSNew York City Subwayservice bullet, used in three out of the system's 28 services, is colored slate gray.

Military

  • TheFleet Air Armaircraft Temperate Day Scheme in theWorld War Twowas 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

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References

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  1. ^RGB approximations of RYB tertiary colors, using cubic interpolation."RYB RGB conversion".Archived fromthe originalon 28 June 2013.Retrieved29 December2012.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.[page needed]
  3. ^John Lemos, 1920, "Color Charts for the School Room", inSchool 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.
  5. ^"Light slate gray".ColorHexa.
  6. ^"Dark slate gray".ColorHexa.