Viridian is a blue-green pigment, a hydrated chromium(III) oxide, of medium saturation and relatively dark in value. It is composed of a majority of green, followed by blue. The first recorded use of viridian as a color name in English was in the 1860s.[1] Viridian takes its name from the LatinScript error: No such module "Lang"., meaning "green".[2] The pigment was first prepared in mid-19th-century Paris and remains available from several US manufacturers as prepared artists' colors in all media.[3]Template:Rp
Viridian pigment was first prepared in 1838 in Paris by Parisian color chemist and painter Pannetier alongside his assistant Binet as a hydrated form of chromium oxide.[4][5] The preparation process was demanding, expensive, and shrouded in secrecy.[3]Template:Rp The French chemist C. E. Guignet developed and patented a cheaper manufacturing method in 1859 that enabled larger distribution and use of the pigment.[3]Template:Rp This method involved calcining a combination of boric acid and potassium bichromate, then washing the material.[3]Template:Rp
Winsor and Newton's catalogue listed the pigment as early as 1849. It was used as early as 1840 in a work by J. M. W. Turner.[3]Template:Rp Viridian was in prominent use by the mid-nineteenth century, but was less popular than three to four times more affordable alternatives including emerald and chrome greens.[3]Template:Rp
Visual characteristics
Viridian is a bright shade of spring green, which places the color between green and teal on the color wheel, or, in paint, a tertiary blue–green color. Viridian is dark in value, has medium saturation, and is transparent.[3]Template:Rp
Variations of viridian
Paolo Veronese green
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Paolo Veronese green is the color that is called verde veronés in the Guía de coloraciones (Guide to colorations) by Rosa Gallego and Juan Carlos Sanz, a color dictionary published in 2005 that is widely popular in the Hispanophone realm.
Paolo Veronese green was a color formulated and used by the noted 16th-century Venetian artist Paolo Veronese.
Paolo Veronese green began to be used as a color name in English sometime in the 1800s (exact year uncertain).[6]
Another name for this color is transparent oxide of chromium.[7]
Viridian green
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At right is displayed the color viridian green.
The source of this color is the "Pantone Textile Paper eXtended (TPX)" color list, color #17-5126 TPX—Viridian Green.[8]
Generic viridian
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Generic viridian is the color that is called Viridian inspecifico in the Guía de coloraciones (Guide to colorations) by Rosa Gallego and Juan Carlos Sanz, a color dictionary published in 2005 that is widely popular in the Hispanophone realm.
Spanish viridian
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Spanish viridian is the color that is called Viridian specifico in the Guía de coloraciones (Guide to colorations) by Rosa Gallego and Juan Carlos Sanz, a color dictionary published in 2005 that is widely popular in the Hispanophone realm.
Permanence
Viridian is considered durable and permanent as an artist's pigment.[3]Template:Rp Viridian is unaffected by temperatures up to 260 °C (500 °F), but it is unsuitable for use in ceramic glazes.[3]Template:Rp Viridian is compatible with all pigments in all media, and has high oil absorption.[3]Template:Rp Pure pigment formulations of viridian are hard and may separate in tubes, but adding barium sulfate in small quantities enables easy grinding and dispersion.[3]Template:Rp
Notable occurrences
Viridian as a quaternary color on the RYB color wheel:
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green
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viridian
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teal
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Although viridian is not a frequent color name in English, it is used in a number of cultural references, probably because it is derived from Script error: No such module "Lang"., the Latin word for green, so using the word viridian sounds more elegant than simply referring to the Old English word green.Script error: No such module "Unsubst".
Fine art painting
Fritz Bamberger, Afterglow in the Sierra Nevada, 1863.[3]Template:Rp
Claude Monet, Arrival of the Normandy Train, Gare Saint-Lazare, 1877, oil on canvas[3]Template:Rp includes traces of viridian in the grassy area.
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Further reading
Newman, R., Chromium Oxide Greens, in Artists’ Pigments, A Handbook of Their History and Characteristics, Vol 3: E.W. Fitzhugh (Ed.) Oxford University Press 1997, p. 273 – 286
External links
Viridian, Pigments through the Ages, Webexhibits. Information about the color viridian, its history, making of, and its chemistry