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.