Mix red and green to get yellow
Mix yellow pigments with a small amount of white to lighten
Mix yellow pigments with a small amount of orange to intensify
Avoid adding too much blue or purple, which can dull or shift yellow toward green or brown
For light (paint/ink), combine red and green light in equal intensities to create yellow
To make a specific yellow shade, adjust ratios of red-to-green (for light) or yellow-to-orange/white (for pigment)