Painting 27.1

Maximal hue difference: a very dark, very low-intensity, barely perceptible blue-purple hue, on a very high-intensity naturally light yellow

Maximal luminosity difference: black added to blue-purple for the figure but nothing needed to be added to the naturally light Cadmium Yellow Light

Maximal intensity difference: the yellow is pure and singular; the blue-purple looks mysteriously deep and distant, cool but almost colorless

William Tapley
Art of Color
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