Mix red and green light to make yellow on screens
Use yellow pigment or paint directly for true yellow color
Mix a small amount of red into green paint to shift toward yellow-green, not pure yellow
Mix white with a yellow pigment to make a lighter yellow
Mix yellow with a little brown or orange to make a warmer yellow
Use CMYK printing with yellow ink for yellow color
Combine equal parts of red and green in additive color systems to produce yellow