All You Really Need. Colorwise.

Paint manufacturers offer an endless number of colors to tempt us but what they do not tell us is that we only need six colors plus black and white to mix everything they offer.

YELLOW MEDIUM
PHTHALO GREEN (blue cast)
PHTHALO BLUE (green cast)
THIO VIOLET or QUINACRADONE MAGENTA (ACRA)
RED LIGHT (Scarlet) (Cadmium Red Light) or (Napthol Red Light)
***THIS IS NOT LIGHT RED WHICH IS      A BRICK COLOR***
YELLOW OCHRE or YELLOW OXIDE
WHITE
BLACK

With these six colors you can mix a complete color wheel with saturated pure colors.
Mix YELLOW LIGHT by adding WHITE to YELLOW MEDIUM.
The color circle is easy:
Y-YYG-YGG-G-BGG-BBG-B-BBV-BVV-V-RVV-RRV-R-RRO-ROO-O-OOY-OYY

Add YELLOW OCHRE to any of these to alter saturation.
Add WHITE and / or BLACK to any for browns and natural greens or to make tints and shades.

Master color and do not let paint companies master you.