Wassily Kandinsky
To begin with, let us test the working on ourselves of individual colours, and so make a simple chart, which will facilitate the consideration of the whole question.
Two great divisions of colour occur to the mind at the outset: into warm and cold, and into light and dark. To each colour there are therefore four shades of appeal — warm and light or warm and dark, or cold and light or cold and dark.
Generally speaking, warmth or cold in a colour means an approach respectively to yellow or to blue. This distinction is, so to speak, on one basis, the colour having a constant fundamental appeal, but assuming either a more material or more non-material quality. The movement is an horizontal one, the warm colours approaching the spectator, the cold ones retreating from him.
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