Slate gray

Slate gray       Color coordinates Hex triplet #708090 sRGB^B  (r, g, b) (112, 128, 144) CMYK^H   (c, m, y, k) (60, 43, 34, 4) HSV       (h, s, v) (210°, 22%, 56%) Source X11 B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

Slate roof

Slate as a tertiary color   purple   slate[1]   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

Light slate gray
Color coordinates
Hex triplet	#778899
sRGB^B  (r, g, b)	(119, 136, 153)
CMYK^H   (c, m, y, k)	(60, 43, 34, 4)
HSV       (h, s, v)	(210°, 22%, 60%)
Source	X11
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

Displayed at right is the web color light slate gray.^[5]

Dark slate gray

Dark slate gray
Color coordinates
Hex triplet	#2F4F4F
sRGB^B  (r, g, b)	(47, 79, 79)
CMYK^H   (c, m, y, k)	(60, 43, 34, 4)
HSV       (h, s, v)	(180°, 41%, 31%)
Source	X11
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

Displayed at right is the web color dark slate gray.^[6]

Slate gray in human culture

Computers

Early 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.

IBM Roadrunner supercomputer—the fastest supercomputer in the world as of May 2008, it can 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 in their 25-pair (and multiples) cable for pairs 5-10-15-20-25 used the term SLATE for the color instead of gray.

Transportation

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 24 services, is colored slate gray.

See also

• List of colors

References

1. RGB approximations of RYB tertiary colors, using cubic interpolation. 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
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
5. "Light slate gray". ColorHexa.com.
6. "Dark slate gray". ColorHexa.com.

• Gray #808080 - htmlhexcolor.com