Here is a quick reference on impressions associated with various colours that your website makes on your visitors.

Colour Associated Impressions and Emotions
Black sophistication, luxury, authority, intelligence
White purity, simplicity, freshness, innovation, harmony
Red energy, excitement, action, passion, dramatic
Yellow brightness, warmth, optimism, creativity, communication
Blue confidence, stability, loyalty, security, honesty
Orange enthusiasm, open, flamboyant, excitement, vitality
Purple prosperity, sophistication, respect, influence, inspiration
Green growth, natural, calm, freshness, soothing, wealth
Brown tradition, reliability, productivity, stability, simplicity
Pink sympathetic, health, youth, affection, femininity
Gold radiance, attractiveness, wealth, expansion, endurance
Silver mystique, charm, understanding, prestige, practicality