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Purple ochre is a rare variant identical to red ochre chemically but of a different hue caused by different light diffraction properties associated with a greater average particle size. Brown ochre, also FeO(OH), ( goethite ), is a partly hydrated iron oxide.
However, this type of ochre should not be confused with Attic ceramics proper, which also had a reputation for high quality. Unlike the bright yellow ocher, Attic clay is light orange to reddish brown in color and often contains small mica sparkles. Of the modern paints that are closer in tone to Attic ochre, one can name, first of all, golden ...
The closest to golden ochre among related minerals is light ochre, which has a less warm and rich color. If in light ochre the content of the main dye, iron oxide hydrate, is quite low and ranges from 12 to 25%, then in golden ochre its amount can reach 70-75%. As a result, light ochre has a yellow color of a cooler tone and weaker color ...
Red ochre takes its reddish colour from the mineral hematite, which is an anhydrous iron oxide, and the main ingredient of rust. It was one of the earliest pigments used by man. Hand prints made by using red ochre have been found in the Pech Merle cave in Southern France. They date to between 16,000 and 25,000 BC.
This is an accepted version of this page This is the latest accepted revision, reviewed on 5 February 2025. Varieties of the color orange Orange Wavelength 585–620 nm Common connotations Autumn, Halloween, Thanksgiving, warmth Color coordinates Hex triplet #FFA500 sRGB B (r, g, b) (255, 165, 0) HSV (h, s, v) (39°, 100%, 100%) CIELCh uv (L, C, h) (75, 105, 45°) Source HTML Color Chart @30 B ...
Magenta is variously defined as a purplish-red, reddish-purple, or a mauvish–crimson color. On color wheels of the RGB and CMY color models, it is located midway between red and blue, opposite green. Complements of magenta are evoked by light having a spectrum dominated by energy with a wavelength of roughly 500–530 nm.
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