Inorganic – Aureolin (Cobalt Yellow) is a transparent, straw, ochre-like yellow with rich, greenish undertones. It was produced in the 1850s as an inorganic replacement for the unreliable organic yellow gum known as Gamboge. In glazes and thinned layers, it displays a Renaissance-like range of muted gold, which over whites can be quite fiery. However, in or over deeper layers, Aureolin exhibits a mustardy, heavy patina. Mixed with PV 23, it can make a most remarkable deep, gingery colour.

Colour Index: PY40

Drying: Average

Transparency: Transparent

Lightfastness: Excellent

Oil Content: Average

Tint Power: Average

Toxicity: Non-Toxic

ASTM D-4236

Vegan: Yes