Search results
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.
Jun 19, 2023 · Learn everything about cobalt blue, a stunning shade with depth and clarity, from its origins to its applications. Discover its hex code, RGB, CMYK, HSL values, and how to pair it with other colors.
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.
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.
Sep 23, 2020 · Learn about cobalt blue, a vibrant pigment derived from a transition metal that has been used in art, pottery and medicine for centuries. Discover how cobalt blue is made, how it differs from other blues, and how it is used in modern technologies such as oxygen absorbers and bacterial isolators.
Cobalt blue is a blue pigment derived from cobalt metal, used in porcelain and glass since ancient times. Learn about its history, properties, applications, and related topics from Britannica's articles.
