This color is used in all the shadows. In landscapes, in some instances, it serves for use in the middle distance and foreground; the light places should be retouched with yellow or gold. It is also used for tree trunks, fences, and the like. In portraits it serves to color the hair and eyes, and appears in the dark shadows of the drapery and furniture. If the background is dark, a nice effect is produced by tinting it a little with this color.