Mixing secondary colors

Mixing secondary colors - student project

October 20, 2020

I've completed the project using different colors than I was originally planning, and smoother paper, in order to try better to understand the results. Here they are:

Mixing secondary colors - image 1 - student project

Conclusion: Warm red makes a better orange than the cool red. Warm red + warm yellow makes the best orange.

Mixing secondary colors - image 2 - student project

Conclusion: Cool red and warm blue make the best violet. Cool red and cool blue is second-best; warm reds make brownish or maroon mixes.

Mixing secondary colors - image 3 - student project

Conclusion: Not crazy about any of these greens, but the cool blue (Prussian blue) made better greens than the warm blue (ultramarine) I think. I will have to look at this some more...

October 19, 2020

Question 2: I was going to try this again using a different blue for the cool blue (bit of yellow)--instead of the Cerulean blue, because the Cerulean is so granulating. I was going to choose a pthalo blue, but discovered there are two: one is "green shade" and one is "red shade". I would have expected the green shade one not to make good violets, but a quick test shows that they both make pretty good violets. ?? Why is this? Is it because I picked a red (Quin. magenta) that is already almost violet? Clearly the "green shade" appears more green by itself, so I would not have expected such nice violets...

Mixing secondary colors - image 4 - student project

Question 1: I haven't completed this project, but I have created some color combinations mixing greens that have left me with a question. First of all, I have to tell you that I'm struggling a bit with labelling my blues as warm vs. red, because I learned to label them in reverse -- that is, that blues that are closer to green were warm, and closer to red were cool, so I'm going a bit cross-eyed. Anyway...

New gamboge (PY153) + Cerulean Blue (PB35). I got a bizarre result from this mix--not a neutralized green, but something that sort of switches back and forth between an orange-y yellow and a blue, but never green. My understanding is this is a warm yellow (a bit of red in it) mixed with a cool blue (a bit of yellow in it), so I wouldn't expect to get a brilliant green from this mixture. I wonder if this bizarreness is a result of the texture of the paints involved. It seem the yellow and blue paints settle differently as they dry and don't ever really mix. Could this be? ???

In the photo, the paints along the left are all New Gamboge; the paints along the right, from top to bottom are: ultramarine blue, cobalt blue, Prussian blue, and Cerulean blue. So my question is about the row along the bottom.

Mixing secondary colors - image 5 - student project