simple enough to understand . The visual stimulation of any specific hue or color
will bring up reaction to its opposite. The AFTERIMAGE of red is blue-green, and
the converse; the afterimage of yellow is violet and the converse: and so forth around the color circle . Opposite colors tend to give brilliance and purity to each other,and there is no apparent
change of hue .
This is from a book about color by , "Birren Principles of Color" author Faber Birren