I have noticed there are certain colors I prefer to work with and purple is not one of them. I like purple, but only certain hues, the muddier ones and also the ones more towards blue and grey. I joined my daughter when she was painting and did a little color study, mixing blue and red and then adding a bit of green and yellow. I have noticed I need less red than blue to make true purple. By adding yellow it turns khaki. By adding green it turns somewhat grey. Next, I will dye wool using this color combinations and see if the same is true in the dyepot.