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Cobalt blue is a blue pigment made by sintering cobalt (II) oxide with aluminium (III) oxide (alumina) at 1200 °C. Chemically, cobalt blue pigment is cobalt (II) oxide-aluminium oxide, or cobalt (II) aluminate, CoAl 2 O 4. Cobalt blue is lighter and less intense than the (iron-cyanide based) pigment Prussian blue.
Learn how to create cobalt blue in different graphic systems using the specific color codes. Find out the HEX, RGB and CMYK values of cobalt blue and its shades and complementary colors.
Jun 28, 2021 · Learn how Cobalt blue, a vibrant and stable pigment, was created in the 19th century as a cheaper alternative to Ultramarine. Discover the origin of the name Cobalt, the toxicity of the color, and its popularity among artists like Monet and Van Gogh.
Learn about cobalt blue, a mixed oxide of cobalt and aluminum, used since 1803 in paintings. See its composition, preparation, identification, and examples of use by artists such as Turner, Renoir, and Van Gogh.
Nov 4, 2022 · Learn about the origin, meaning and properties of cobalt blue, a vibrant and dark shade of blue. Find out how to make cobalt blue and what colors go well with it in art and design.