The mixture of any secondary colour and the primary colour that is not part of it will result in a brown.
For example:
Add yellow to purple. Add red to green. Add blue to orange.
You could also just add blue and red which makes purple but if its dark enough it might be able to produce a brown-ish colour. If its to purple then just add black to it.
two primary colors
You can mix blue and yellow to make green.
Black and white.
Blue and red mix to make purple. Mixing these two colors together creates a new color, which is purple.
black and white
Blue and Red
Mix colors black and white together to get gray!
You mix two primary colors together to create a secondary color. For example, red and blue make purple, blue and yellow make green, and red and yellow make orange.
You mix yellow and blue to make green.
All colors mix and make a new hue unless you use two of the same colors.
None. Red is a primary color.
White and Black. ;D Your Welcome