We never quit amazing me! Artists, that is. This month's challenge was the brainwave of Robin Cheers...Do a painting with only two complementary pigments, in this case, purple and yellow (white allowed but no black).
I used Cobalt Violet (Grumbacher Artist's Quality) and Cadmium Lemon (WinsorNewton Artist's). In retrospect, I wish I had used a stronger purple because my darks were limited. BUT, it was a great exercise to know my dark purple was as dark as it could be, so to get more value range I had to use more yellow and white. And, WHY didn't I think to MIX my purple. So typical of me...must have been my left analytical brain in control!
Hmmm. wonder if my cohorts kept their purple mixtures constant...? And if so, fully mixed...? Otherwise, you could go to the red side or to the blue side and still be 'purple', but would yield a few more 'tones'. Of course, most tubes are 'admixtures' in the first place. My chosen purple contains a cobalt (Pv14) and a Manganese (PB16). It is always interesting to be aware of what is in your tube although I am not a chemist and don't have a clue where the red is coming from!
"PY Study"
©2010 Vicki Ross
9x12 oil on panel
with Cobalt Violet and Cadmium Lemon + White
5x5 inches / oil on panel
YELLOW: cadmium yellow
PURPLE: cadmium red + french ultramarine blue
Purple: Ultramarine Blue and Quinacridone Red
And Hansa Yellow / white
"Sofia"
16x20" oil on canvas
Oil on hardboard 7"x5"