Description Colour Index PBk 9 & PB 29 & PY 42 Drying Speed Average Opacity Covering and Tint Power Semi-Opaque Lightfastness Excellent Oil Content High, Linseed Toxic No Conforms ASTM D-4236 ASTM D-4236 ƒ‚‚ A blend of Ivory Black, Ultramarine and Iron Oxide Yellow, which gives a markedly cool black substitute. The blue undertones are similar to, but much milder than those of Prussian Blue. Some painters prefer this blend for its restrained Tint Power, and use it in cool reflex tones in flesh painting
