From a a previously unopened tube of Permanent Sap Green...
Permanent Sap Green is what is known as a convenience color, a mix of a couple of pigments. In this case, Winsor Green YS PG36 comes premixed with Isoindolinone Yellow PY110. That Winsor Green is actually a phthalo, a real heavy hitter. I was reminded of that as soon as I began mixing, as even the cadmiums had a hard time holding their own against that powerful pigment.
Students are asked to "really push those greens" and starting with green instead of blue in this exercise made that quite simple. I particularly liked he way the greens rolled off into browns as we moved further towards red and then into the earth colors.
I may get back to another chart or two, but I think next up is an exercise where I am to simply "play with my paints". Maybe for me that is not as easy at it sounds, having been boxed in with all my color charts.