Red is a color of passion. It can incite violence or patriotism, hunger or lust. Red is a very strong color, used for strong emotions. It is mostly a masculine color, and a color used to inspire energy. Red gets your attention – it is the reason stop signs and fire trucks and certain states’ police cars use the color.
Orange is a cheerful color. Like red, it also inspires energy, but of a much more subdued sort. Orange is for emotional strength, optimism, communication, hunger, youthfulness, and inspiration.
Yellow is for optimism, knowledge, creativity, but also critical thinking and cowardice. Yellow depends entirely on the hue and shade it is used in. A greenish yellow can signify and induce sickness while a soft orange-ish yellow can do the opposite. Yellow is the most visible color of all, and stimulates left brain (analytical) activity.
Green is for nature, peace, balance, growth and relaxation. Green also signifies money, jealousy, and military matters. Green’s perception depends on the shade (darker or lighter) that is used.
Aqua, Teal and Turquoise signify mental clarity and peace. It is a combination of green’s relaxation with blue’s open-mindedness.
Blue is for trust, peace, and loyalty. The lighter the blue, the more chance that it can signify coldness and detachment. Blue is very often used for corporations and many major websites.
Indigo is the color of intuition, service, wisdom, justice, and stimulates right brain (creative) activity.
Purple is a color of creativity, inspiration, the metaphysical and royalty. It promotes mental harmony, but used too much it can cause depression.
Pink is feminine, romantic, and nurturing, but it can also be seen as selfish, low self-worth and a lack of reliance on oneself.
Black is secretive, mysterious, dark and elegant. Black is a color of power, independence, sophistication, dignity and mourning. Black is one of the most misunderstood colors.
Grey is a color of compromise, stability and firmness. Silver, on the other hand, is a color of femininity, the moon, prosperity, modernism, and respectable, courteous and high-tech.
White is the color of purity, innocence, new beginnings, calmness and gentle encouragement. Too much white can signify starkness and a cold detachment.
Brown is serious, down-to-earth, natural, friendly, frugal, structure, reassurance, maturity, and comfort. Too much brown can indicate tedium, and brown’s impression is based largely on the colors that are paired with it.
No, I didn’t make all this up. See below for additional resources and the reference links for which I got my information: