Ochre
— Color coordinates —
Hex triplet		#CC7722
B	(r, g, b)	(204, 119, 34)
HSV	(h, s, v)	(30°, 83%, 80%)
Source		BF2S Color Guide
B: Normalized to [0–255] (byte)

Ochre or Ocher (pronounced /'əʊ. kə(r)/, from the Greek ὠχρός, yellow) is a color, usually described as golden-yellow or light yellow brown. Greek (el ελληνική γλώσσα or simply el ελληνικά — "Hellenic" is an Indo-European language, spoken today by 15-22 million people mainly Gold, also called golden, is a Yellowish orange Color which is a representation of the color of the element Yellow is the Color evoked by light that stimulates both the L and M (long and medium wavelength Cone cells of the Retina about equally Black, when used as a general term is a color that is a Very dark Black, black, or Black, of low Luminance relative to

Pigment

Goethite (brown ochre)

Ochre quarry of Rustrel

As a painting pigment, it exists in at least four forms:

• Yellow ochre, Fe₂O₃ • H₂O, a hydrated iron oxide
• Red ochre, Fe₂O₃, chemically identical to yellow ochre, but reddened through heating
• Purple ochre, 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 (Goethite), also partly hydrated iron oxide (rust)

For further information, see the articles on the individual ochres. Painting (pān'tīng in Art, is the practice of applying Color to a Surface (support base such as e For the drug referred to as "pigment" see Black tar heroin. Red ochre and yellow ochre (pronounced /'əʊkə/ from the Greek ὄχρος yellow are Pigments made from naturally tinted Clay. Iron (ˈаɪɚn is a Chemical element with the symbol Fe (ferrum and Atomic number 26 Oxygen (from the Greek roots ὀξύς (oxys (acid literally "sharp" from the taste of acids and -γενής (-genēs (producer literally begetteris the Hydrogen (ˈhaɪdrədʒən is the Chemical element with Atomic number 1 Oxygen (from the Greek roots ὀξύς (oxys (acid literally "sharp" from the taste of acids and -γενής (-genēs (producer literally begetteris the Hydrate is a term used in Inorganic chemistry and Organic chemistry to indicate that a substance contains Water. Altogether there are sixteen known Iron Oxides and oxyhydroxides Red ochre and yellow ochre (pronounced /'əʊkə/ from the Greek ὄχρος yellow are Pigments made from naturally tinted Clay. Goethite, named after the German Polymath Johann Wolfgang von Goethe, is an iron bearing oxide mineral found in soil and other low temperature environments Altogether there are sixteen known Iron Oxides and oxyhydroxides Rust is a general term for a series of Iron oxides, usually red oxides formed by the reaction of Iron with Oxygen in the presence of water or air They are found throughout the world in many shades. Many sources consider the best brown ochre to come from Cyprus, and the best yellow and red ochre from Roussillon, France. Cyprus (Κύπρος transliterated: Kýpros,; Kıbrıs officially the Republic of Cyprus (Κυπριακή Δημοκρατία Kypriakī́ Dīmokratía Roussillon is a Village and commune in the Luberon area of the Vaucluse ''department'' in southern France. This article is about the country For a topic outline on this subject see List of basic France topics. All have been used since prehistoric times, and are among the oldest pigments used.

Industry

When the mineral was found in Brixham England, it became a very important part of the developing fishing industry. Brixham (ˈbrɪksəm is a small town in the county of Devon, in the south-west of England. England is a Country which is part of the United Kingdom. Its inhabitants account for more than 83% of the total UK population whilst its mainland This gave the old fishing boats their "Red Sails in the Sunset", but the purpose was to protect the canvas from seawater, not to be picturesque. It was boiled in great caldrons, together with tar, tallow and oak bark, the last ingredient giving the name of barking yards to the places where the hot mixture was painted on to the sails, which were then hung up to dry. Tar is a viscous black Liquid derived from the Destructive distillation of organic matter Tallow is a rendered form of Beef or Mutton Fat, processed from Suet. The term oak can be used as part of the common name of any of about 400 species of Trees and Shrubs in the Genus Quercus (from Latin

See also

• Clay earth pigment
• List of colors

External links

• Pigments through the ages
  • Red Ochre
  • Yellow ochre
  • Brown ochre

References

• Fuller, Carl; Natural Colored Iron Oxide Pigments, pp. Clay earth pigments are naturally occurring Minerals that have been used since prehistoric times as Pigments The primary types are Ochre The following is a partial list of Colors with associated articles. 281-6. In: Pigment Handbook, 2nd Edition. Lewis, P. (ed. ). New York: John Wiley & Sons, 1988.
• Thomas, Anne Wall. Colors From the Earth, New York: Van Nostrand Reinhold, 1980.