Mix red and green paint to create brown
Mix orange and blue paint to create brown
Mix yellow and purple paint to create brown
Mix equal parts of complementary colors (red+green, blue+orange, yellow+purple)
Start with a small amount of one color, then add more until the brown matches
Darken brown by adding a small amount of black or burnt umber
Lighten brown by adding white
Warm brown by adding more red or yellow
Cool brown by adding more blue or green
Create a richer brown by using burnt sienna or burnt umber as a base
Adjust with small increments to avoid overshooting the shade