Inorganic – Cobalt stannate was introduced in 1870 under the name “Cerulean”, i.e. sky-blue, in imitation of a Roman pigment of that name. It is a subtle greyish turquoise which some discerning painters value for its rather mild hues for landscape and seascape. A gorgeous, unique blue with excellent covering power.
| Colour Index | PB36 |
| Drying | Average |
| Transparency | Opaque |
| Lightfastness | Excellent |
| Oil Content | Low |
| Tint Power | Average |
| Toxicity | Toxic |
