"From this we gather that a balanced composition of color preserves some sort of equilibrium, uniting degrees of warm and cool, of light and dark, and of weak and strong..."
Albert Henry Munsell, 1905.
"A Color Notation, A measured color system,
based on the three qualities
Hue, Value and Chroma" .
Tredition Classics, ppg, 42, paràgraf 142.