Complementary pairs are chromatically balanced as each pair contains all three primaries
red, yellow, and blue (RYB)
We have a physiological relationship with complementary hue contrasts
When eyes become saturated, our eyes produces its complement.
What is this called?
Stare at this image for 20–60 seconds
Result…. A negative afterimage will appear
Example of a chromatic painting using optical black, with tints.