Here is a question posted by one of our Virtual Art Academy
students, and the answer provided by another student:
Can anybody help me? I am desperately trying to mix the violet color shown in the photo. Of which colors does it consist? Thanks for your help! Sabine
Your sample is extremely saturated, I doubt that any oil paint exists that saturated. At least not to my knowledge. Violets are rather weak pigments when tinted.
Except for Dioxazin. If it is too blueish, you could move it towards red yourself by adding red such as Quinacridone Magenta. This is the most brilliant violet you can get, that I am aware of.
An alternative could be Manganese Violet but it is weaker when tinted.
Ultramarine violet (either reddish or blueish) can be used nicely for shadows and glazing. But not so much as "stand alone" paint.
Cobalt Violet is a pretty color, but weak and too expensive in my opinion.
You could also mix your own violet using red and blue (but as Barry mentioned you have to be aware of their biases), especially by using Quinacridone Magenta PR 122 and Ultramarine Blue. But it is not as highly saturated as pure Dioxazin.
Hope this helps.