Red and green: What Color Do They Make?

Dark brown

Red + green = dark brown. With more red you get reddish brown; with more green, gray-green.

More shades from the same colors

Reddish brown2 parts red + 1 part greenGray-green1 part red + 2 parts greenLight browndark brown + white

Red + green: these are opposite colors, so mixed together they cancel each other out and make dark brown. A tiny bit of one is enough to tone down the other.
If it gets too dark, add white little by little.

What color do red and green make?

Red + green, in equal parts, make dark brown. With more red it leans toward reddish brown, and with more green, toward gray-green.

What ratio of red and green should I use?

Half and half makes dark brown. 2 parts red to 1 part green gives reddish brown; 1 part red to 2 parts green gives gray-green.

How do I make dark brown lighter or darker?

Add white little by little to lighten it (light brown) or a little black to darken it (dark brown).

Why do red and green make dark brown?

Because they are complementary colors: they sit opposite each other on the color wheel, so when mixed they cancel each other out.

What if I mix red and green light?

With light, like on a screen, colors add up: red and green make yellow.