Red and blue
If you don't add white [which is really an ABSCENCE of color ], you get black.And if you do add white... You get grey. :3333 Not really...
Primary colours are red blue and yellow and you mix combinations of them for new colours!!
You get secondary colors like green, purple, pink, orange, and just about all the colors but red blue and yellow. Red yellow blue: red and yellow=orange red and blue -=purple yellow and blue=green...
Blue and Black