http://sixrevisions.com/web_design/a-look-into-color-theory-in-web-design/
Meaning of Popular Colors:
Red symbolizes fire and power and is associated with passion and importance. It also helps to stimulate energy and excitement.
The negative connotations of red are rage, emergency, and anger, which stem from the passionate and aggressive qualities of red.
Orange is a combination of its two neighbors on the color wheel, red and yellow. Orange symbolizes happiness, joy and sunshine. It is a cheerful color, evoking childlike exuberance.
Orange is not as aggressive as red but takes on some of the same qualities, stimulating mental activity. It also symbolizes ignorance and deceit.
Bright yellow is a happy color representing the positive yellow qualities: joy, intelligence, brightness, energy, optimism, and happiness.
A dingy yellow brings about negative feelings: caution, criticism, laziness, and jealousy.
Green symbolizes nature and has a healing quality. It can be used to symbolize growth and harmony. People feel safe with green. Hospitals often use the color of green.
On the other hand, green is symbolic of money, showing greed or jealousy. It can also be used to symbolize a lack of experience or a beginner in need of growth ("green behind the ears").
Blue is a peaceful and calming color exuding stability and expertise. It is a common color used in corporate sites because of this. Blue can also symbolize trust and dependability.
A cool shade can bring about the negative side of blue, symbolizing depression, coldness, and passiveness.
Purple is the color of royalty and sophistication showing wealth and luxury. It also gives a sense of spirituality and encourages creativity.
Brighter purples can exude a magical feeling. It’s also great for promoting creativity and feminine qualities. Darker purples can conjure gloominess and sadness.
Although black is not a part of the color wheel, it can still be used to suggest feeling and meaning. It is often correlated with power, elegance, sophistication, and depth. It is said that wearing black on a job interview can show that the interviewee is a powerful individual, and the same goes with websites.
Black can also be seen negatively because the color is associated with death, mystery and the unknown. It is the color of grief, mourning, and sorrow so it must be used wisely.
White—also not a part of the color wheel—symbolizes purity and innocence. It also shows cleanliness and safety.
Conversely, white can be seen as cold and distant, symbolizing winter’s harsh and bitter qualities.
Get Complementary Colors: An easy way using the hex# notation is to replace cifre by cifre f.e.
color #abcdef gets complementary #543210 or #ff00ff gets #00ff00 or #4f22c8 gets #b0dd37.
0 1 2 3 4 5 6 7 8 9 a b c d e f color
f e d c b a 9 8 7 6 5 4 3 2 1 0 complement
