RED. PhysicalPositive: Physical courage, strength, warmth, energy, basic survival, 'fight or flight', stimulation, masculinity, excitement.
Negative: Aggression, defiance, visual impact, strain.
Red is a powerful colour as it being the longest wavelength.
Not technically the most visible.
It grabs our attention first as it has the property of appearing to be nearer than it is.Thats why sometimes red is used in signboards such as "Danger" or "Stop" and its effectiveness in traffic lights the world over.
Its effect is physical; it stimulates us and raises the pulse rate, giving the impression that time is passing faster than it is.
Red is very Basic,Strong,Stimulating and lively.
It relates to the masculine principle and can activate the "fight or flight" instinct.Pure red is the simplest colour, with no subtlety.At the same time, it can be perceived as demanding and aggressive.
More info from source - http://www.colour-affects.co.uk
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