Raw Umber (No. 121)
Organic, Natural Earth
| Colour Index | PBr 6 |
| Drying Speed | Very Fast |
| Opacity Covering and Tint Power | Semi-Transparent |
| Lightfastness | Excellent |
| Oil Content | Average, Linseed |
| Toxic | No |
| Conforms To | ASTM D-4236 |
Raw Umber is one of the fundamental Earths used as an imprimitura pigment to draw out compositions as a ground, as many Rubens sketches prove. Depending on the degree of transparency it exhibits greenish undertones.