Colour (color in U.S.A) – Effects on the eye including every hue, tint, shade including white grey and black
Without seeing colour, Dorothy didn't know which way to go.
Colour is fundamental in most visual art, with many artists producing vivid works with a whole spectrum of colour.
Vincent Van Gogh, The Starry Night, 1889
Piet Mondrian, Composition en rouge, jaune, bleu et noir, 1921