I just made this color chart to see a more visual layout of the colors that I use the most when painting trees and nature. I think I've come to the conclusion that Lemon Yellow and Cadmium Yellow Light are almost the same color. I love the vibrancy of the pure colors, especially Ultramarine Blue. The colors shown here are: Sap Green, Hookers Green, Ultramarine Blue, Cobalt Blue, Cerulean Blue, Cadmium Yellow, Cadmium Yellow Light and Lemon Yellow. So hopefully this will be a good reference in the future!