purple umber pigment
the purple umber pigment is a blend of mars violet, red oxide and black iron oxide resulting in a lightly shaded purplish eggplant color. The purple umber pigment is compatible with all binders and all techniques, however it will often be necessary to stir the container when painting because the red tends to settle at the bottom of the pot. It will also be necessary to add a little 95 ° alcohol to it in addition to the black soap to facilitate its dilution in the binders.