Burnt Sienna is a great starting point for making warm mid browns. It is more brown and a little more like a dark orange than Red Oxide. This is very apparent in tints with Titanium White. Burnt Sienna is often just the right colour to work with the warm colours in hair, especially reddish hair. Burnt Sienna works well with all transparent red colors. Mixed with Primary Red for example it has a rich leathery mass tone while the undertone glows with fiery reds. As much as these colors are beautiful, the biggest use of Burnt Sienna is more in smaller portions of mixtures making small adjustments here and there such as to a green to make it a little softer and more natural, to flesh colors to make them a little warmer or more brown and to all manner of earth colors when painting landscape. Its popularity remains undiminished after hundreds of years due to this ability to be a general workhorse on the palette.
Chemical Description: Synthetic and natural iron oxide
Pigment Numbers: PBr7 PR101
Lightfastness Rating: ASTM I
Pigment Opacity: Transparent
Paint Opacity: Semi-Transparent