by Robbie » Dec 21st, '11, 13:47
I'm not quite sure what you're asking, but I'll assume you mean the psychology of colour. If you can find a copy of The Luscher Colour Test, that's an excellent introduction. The psychological impact of a colour tends to come from where this colour is found in the natural world. Presumably the psychological meanings are hard-wired deep in the brain, and probably evolved together with humans.
Red is the colour of fire, blood, and muscle. It's associated with concepts of energy, aggression, and animal life. Looking at red is stimulating; it raises the blood pressure and increases your assertiveness and aggression. Humans (and other primates) instinctively find it attractive, although some people find it overstimulating and deliberately reject it. It seems to be the most psychologically primitive colour -- it's the first colour to be given a name in any language, and the one people usually say when challenged to name a colour without thinking. Apes that have been taught sign language have also spontaneously used "red" to describe pain and anger.
Green is the colour of plants. It's associated with concepts of plant life, growth, freshness, and germination or new life. Looking at green is calming and soothes the eyes. It also gives a feeling of cleanness, which may be why it's used so much in hospitals and similar institutions. In most cultures, it's also associated with money and prosperity.
Blue is the colour of the daytime sky and large bodies of water. It's associated with concepts of calmness and quiet depth. Looking at blue is so calming it's actually sedative; it lowers the blood pressure and decreases aggression. Most adults will claim it as their favourite colour, and it's the one people usually say when asked to name a colour and given a few moments to think about it.
Black is the colour of the night sky and deep darkness in which humans can't see. It's associated with concepts of concealment, secrecy, the unknown, and hidden danger, which is why most cultures make it the colour of witchcraft or evil.
Yellow is the colour of the sun. It's associated with concepts of light, brightness, openness, and happiness. Looking at yellow is cheering. It's therefore associated with a "sunny" disposition and the carefree joy of youth.
Purple is not found in nature, as a rule. It's associated with concepts of fantasy, imagination, dreams, and unreality. It's a common favourite colour among children and younger teens. Adults with emotional problems also find it very attractive, but most people find themselves liking purple less as they grow up.
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