Psychology behind colours in Western culture:

• Red: energy, danger, strength, power, determination, passion, desire and love.
• Orange: joy, sunshine, endurance, enthusiasm, creativity, success, encouragement and stimulation.
• Yellow: joy, happiness, intellect, energy, cheerfulness, caution and freshness.
• Green: growth, harmony, freshness, fertility, stability, protection and finances.
• Blue: depth, stability, trust, wisdom, loyalty, confidence, intelligence, truth and health.
• Purple: royalty, luxury, power, nobility, ambition, wealth, mystery and independence.
• White: light, goodness, innocence, purity, cleanliness, simplicity and coolness.
• Black: power, elegance, formality, mystery, prestige, strength and authority.