Ochre

Ochre
Ochre
Color coordinates
Hex triplet	#CC7722
sRGBB (r, g, b)	(204, 119, 34)
HSV (h, s, v)	(30°, 83%, 80%)
CIELChuv (L, C, h)	(58, 87, 37°)
Source	colorxs.com/color
ISCC–NBS descriptor	Deep orange
	B: Normalized to [0–255] (byte);

Ochre (/ˈoʊkər/ OH-kər; from Ancient Greek ὤχρα (ṓkhra), from ὠχρός (ōkhrós) 'pale'), iron ochre, or ocher in American English, is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand.^[1] It ranges in colour from yellow to deep orange or brown. It is also the name of the colours produced by this pigment, especially a light brownish-yellow.^[2]^[3] A variant of ochre containing a large amount of hematite, or dehydrated iron oxide, has a reddish tint known as red ochre (or, in some dialects, ruddle).

The word ochre also describes clays coloured with iron oxide derived during the extraction of tin and copper.^[4]

^ ocher. American Heritage Dictionary. 1969.
^ Shorter Oxford English Dictionary (2002), Oxford University Press.
^ The Random House College Dictionary, Revised Edition, (1980). "Any of a class of natural earths, mixtures of hydrated oxides of iron and various earthy materials, ranging in colour from pale yellow to orange and red, and used as pigments. A colour ranging from pale yellow to reddish-yellow."
^ "Ochre" . Collier's New Encyclopedia. Vol. VII. 1921.

[1] ocher. American Heritage Dictionary. 1969.

[2] Shorter Oxford English Dictionary (2002), Oxford University Press.

[3] The Random House College Dictionary, Revised Edition, (1980). "Any of a class of natural earths, mixtures of hydrated oxides of iron and various earthy materials, ranging in colour from pale yellow to orange and red, and used as pigments. A colour ranging from pale yellow to reddish-yellow."

[4] "Ochre" . Collier's New Encyclopedia. Vol. VII. 1921.

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