Cobalt blue and cadmium red Ultramarine blue and crimson lake Quinacridone violet and crimson lake
If you’re using a strong blue like ultramarine or Prussian blue, add only a little bit at a time because those intense blues can overpower the red. Always experiment with your colors and ratios. Slowly add different colors until you get to the right value (how light or dark the color is) and then the right hue (color).
If you don’t have black paint, mix ultramarine blue and raw umber. Green is a complementary color to magenta, so it will lower the saturation (or richness) of the magenta as you add it.
As a result, we recommend mixing quinacridone violet with red if you’re working with gel, gesso, or white paint.
