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Ultramarine is a deep blue color pigment which was originally made by grinding lapis lazuli into a powder. [2] Its lengthy grinding and washing process makes the natural pigment quite valuable—roughly ten times more expensive than the stone it comes from and as expensive as gold.
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]
Achromatic grays are colors between black and white (without chroma). Chromatic grays can be thought as achromatic grays mixed with warm hues such as yellow (warm grays) or cool hues such as azure (cool grays). This gray color template includes both achromatic and chromatic grays.
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 ...
For artists, most pigments and papers have a cool or warm cast, as the human eye can detect even a minute amount of saturation. Gray mixed with yellow, orange, or red is a "warm gray". Green, blue, or purple create "cool grays".
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.
Characteristics found in warm versus cool climates. Warmer-climate wines tend to be riper than their cool-climate counterparts, which typically possess more mouthwatering acidity. As a result ...
Ultramarine blue: RAL 5003: Sapphire blue: RAL 5004: Black blue: RAL 5005: Signal blue: RAL 5007: Brilliant blue: RAL 5008: Grey blue: RAL 5009: Azure blue: RAL 5010: Gentian blue: U8 line of the Berlin U-Bahn: RAL 5011: Steel blue: RAL 5012: Light blue: U7 line of the Berlin U-Bahn: RAL 5013: Cobalt blue: Deutsche Bundesbahn express ...