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Ultramarine is a blue made from natural lapis lazuli, or its synthetic equivalent which is sometimes called "French Ultramarine". [41] More generally "ultramarine blue" can refer to a vivid blue. The term ultramarine can also refer to other pigments.
Ultramarine became more widely used after its synthesis in the 19th century, which lowered its price substantially. [11] Synthetic ultramarine was widely appreciated by the French impressionists, and Vincent van Gogh used both French ultramarine and cobalt blue for his painting The Starry Night (1889). [12]
"International Klein Blue" (IKB) is a process registered in France on 19 May 1960 at the Institut national de la propriété industrielle (INPI) under Soleau envelope no. 63471 by the French artist Yves Klein. It combines ultramarine blue pigment with a specific binder created with the help of a chemist. By law, no one can appropriate a colour.
Hues of blue include indigo and ultramarine, closer to violet; pure blue, without any mixture of other colours; Azure, which is a lighter shade of blue, similar to the colour of the sky; Cyan, which is midway in the spectrum between blue and green, and the other blue-greens such as turquoise, teal, and aquamarine.
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 February 2025. Variety of the color blue For other uses, see Shades of Blue (disambiguation). "Shade of Blue" redirects here. For the song by Black Rebel Motorcycle Club, see Shade of Blue (song). For the R&B/funk band, see Shade of Blue (band). Blue Wavelength 440–490 nm Common connotations ...
Jean-Baptiste Guimet (20 July 1795 – 8 April 1871), French industrial chemist, and inventor of synthetic colors, [2] was born at Voiron, Isère.. He studied at the École Polytechnique in Paris, and in 1817 entered the Administration des Poudres et Salpêtres. [3]
He used cobalt blue, invented in 1807, cerulean blue invented in 1860, and French ultramarine, first made in 1828. The Umbrellas , by Pierre Auguste-Renoir. (1881 and 1885).
Likewise, a blue that is ultramarine at high concentrations appears cyan at low concentrations, allowing it to be used to mix green. Chromium red pigments can appear orange, and then yellow, as the concentration is reduced. It is even possible to mix very low concentrations of the blue mentioned and the chromium red to get a greenish color.