Cerulean blue Guide, Meaning , Facts, Information and Description
Cerulean blue is a medium to light blue pigment used in artistic painting. It is particularly valuable for painting atmospheric shades because of the purity of the blue. The pigment is regarded as permanent: in oil, no other blue pigment retains color as well.
Discovered in 1805 by Andreas Höpfner, the pigment was first marketed in 1860 as "coeruleum" by George Rowney of the United Kingdom. The primary chemical constituent is cobalt (II) stannate.
The word cerulean is derived from the Latin word "caeruleum", which means sky or heavens. In classical times, this term was used to describe other blue pigments.