COLOUR OF HUMAN

RED. Physical
Positive: Physical courage, strength, warmth, energy, basic survival, 'fight or flight', stimulation, masculinity, excitement.
Negative: Defiance, aggression, visual impact, strain.
Being the longest wavelength, red is a powerful colour. Although not technically the most visible, it has the property of appearing to be nearer than it is and therefore it grabs our attention first.

BLUE. Intellectual. Positive: Intelligence, communication, trust, efficiency, serenity, duty, logic, coolness, reflection, calm. Negative: Coldness, aloofness, lack of emotion, unfriendliness. Blue is the colour of the mind and is essentially soothing; it affects us mentally, rather than the physical reaction we have to red. Strong blues will stimulate clear thought and lighter, soft blues will calm the mind and aid concentration.
YELLOW. Emotional Positive: Optimism, confidence, self-esteem, extraversion, emotional strength, friendliness, creativity. Negative: Irrationality, fear, emotional fragility, depression, anxiety, suicide. . The right yellow will lift our spirits and our self-esteem; it is the colour of confidence and optimism. Too much of it, or the wrong tone in relation to the other tones in a colour scheme, can cause self-esteem to plummet, giving rise to fear and anxiety. Our "yellow streak" can surface.
GREEN. Balance Positive: Harmony, balance, refreshment, universal love, rest, restoration, reassurance, environmental awareness, equilibrium, peace. Negative: Boredom, stagnation, blandness, enervation. Green strikes the eye in such a way as to require no adjustment whatever and is, therefore, restful. Being in the centre of the spectrum, it is the colour of balance - a more important concept than many people realise.
VIOLET. Spiritual Positive: Spiritual awareness, containment, vision, luxury, authenticity, truth, quality. Negative: Introversion, decadence, suppression, inferiority. The shortest wavelength is violet, often described as purple. It takes awareness to a higher level of thought, even into the realms of spiritual values. It is highly introvertive and encourages deep contemplation, or meditation.
ORANGE. Positive: Physical comfort, food, warmth, security, sensuality, passion, abundance, fun. Negative: Deprivation, frustration, frivolity, immaturity. Since it is a combination of red and yellow, orange is stimulating and reaction to it is a combination of the physical and the emotional. It focuses our minds on issues of physical comfort - food, warmth, shelter etc. - and sensuality. It is a 'fun' colour.
PINK. Positive: Physical tranquillity, nurture, warmth, femininity, love, sexuality, survival of the species. Negative: Inhibition, emotional claustrophobia, emasculation, physical weakness. Being a tint of red, pink also affects us physically, but it soothes, rather than stimulates.  .   Pink is a powerful colour, psychologically. It represents the feminine principle, and survival of the species; it is nurturing and physically soothing. Too much pink is physically draining and can be somewhat emasculating.
GREY. Positive: Psychological neutrality. Negative: Lack of confidence, dampness, depression, hibernation, lack of energy. Pure grey is the only colour that has no direct psychological properties. It is, however, quite suppressive. A virtual absence of colour is depressing and when the world turns grey we are instinctively conditioned to draw in and prepare for hibernation. Heavy use of grey usually indicates a lack of confidence and fear of exposure.
BLACK. Positive: Sophistication, glamour, security, emotional safety, efficiency, substance. Negative: Oppression, coldness, menace, heaviness. Black is all colours, totally absorbed. The psychological implications of that are considerable. It creates protective barriers, as it absorbs all the energy coming towards you, and it enshrouds the personality. Black is essentially an absence of light, since no wavelengths are reflected and it can, therefore be menacing; many people are afraid of the dark. It communicates sophistication and uncompromising excellence and it works particularly well with white. Black creates a perception of weight and seriousness. It is a myth that black clothes are slimming: