Last year I took dyeing classes with Carol Soderlund in wich we created colorfamilies using only 3 pure procion mx dyes to create more than 300 different colors. How we did that is something I am not going to reveal. You have to take classes with Carol or wait for her book. Anyway a small group of former students decided to create more colorfamilies and swap them amongst each other. The picture shows the results of the first step: 6 different colors of yellow. In this case Tangerine from ProChem.
They have now all been sorted and are ready for the next step.