When you have a tube of paint with a generic sort of name like “Speedball Red”, it’s difficult to know what it will do when mixed with your other pigments.  Will it behave more like a cadmium red or like an Alizarin Crimson?  Can a purple be created when mixed with a blue?

Color Mix comparisons

Comparing the results of these color wheels, Speedball Red is a cooler red than I had imagined it would be.  It’s much closer to Alizarin Crimson than to Cadmium Red Light.  I will make another sample mix using a Cadmium Red Medium and a Vermillion.

Notice that using Cadmium Red Light and Joe’s blue (Phthalo) the mix is more of a brown than any sort of purple.  Good to know!  There is far too much yellow in the Cadmium Red Light, preventing a purple from appearing.

Color Wheels created using watercolor paints.