Which colours?
Which frequency of those colours?
Visual energy stimulates and collapses various neurochemical activity both positively (positive charge) and negatively (negative charge).
Colourless Whiteness - the great white hallow....
Colour is bound up with the fate of western culture. "In the west, since antiquity, colour has been systematically marginalized, reviled, diminished and degraded."
Generations of philosophers, artists, art historians, and cultural theorists of one stripe or another have kept this prejudice alive, warm, fed, and groomed. The loathing of colour and the fear of corruption through colour, Chromophobia.
Attempts to purge colour from culture, to devalue colour, to diminish its significance, to deny its complexity.
This is accomplished in two ways:
1. colour is made out to be the property of some 'foreign body' - usually the feminine, the oriental, the primitive, the infantile, the vulgar, the queer, or the pathological. Alien and dangerous.
2. Colour is relegated to the realm of the superficial, the suplementary, the inessential, and the cosmetic.It is perceived merely as a secondary quality of experience, and thus unworthy of serious consideration.
Also, try reading Erwin A Abbot's 'Flatland'.
http://www.alcyone.com/max/lit/flatland/8.html