Some one may have posted this before. Color App Page

Color Scheme Designer Love ALL the buttons on this app. Try everything. Led to it by this super aggregator of a Tumblr. Tutorials for Artists. On the tutorials page, I recommend the Christopher Hart- Drawing Cutting Edge Anatomy. Goofball title but great presentation of material. I undeservedly absolve myself of the pirating stain by noting I've bought a couple of his books before. This is his best I've seen. If I ever switch gears where I'm buying instead of selling, I might get this one.

I like the Colorblind button as well. I'm probably the every common 5 percent (dueteranaomaly). That seems to subjectively jump and shift the least when it is pushed.