Red

Red is the color of fire and blood, so it is associated with energy, war, danger, strength, power, determination as well as passion, desire, and love. Red is a very emotionally intense color. It has very high visibility, which is why stop signs, stoplights, and fire equipment are usually painted red.

Orange

Orange combines the energy of red and the happiness of yellow. It is associated with joy, sunshine, and the tropics. Orange represents enthusiasm, fascination, happiness, creativity, determination, attraction, success, encouragement, and stimulation.

Yellow

Yellow is the color of sunshine. It's associated with joy, happiness, intellect, and energy.
Yellow produces a warming effect, arouses cheerfulness, stimulates mental activity, and generates muscle energy. Yellow is often associated with food. Bright, pure yellow is an attention getter, which is the reason taxicabs are painted this color.

White

White is associated with light, goodness, innocence, purity, and virginity. It is considered to be the colour of perfection.
White means safety, purity, and cleanliness. As opposed to black, white usually has a positive connotation. White can represent a successful beginning. In heraldry, white depicts faith and purity.

Neutral

Safety, reliability, intelligence, melancholy, modesty, dignity, maturity, soundness, functionality, old age and grief.

Green

Green is the color of nature. It symbolizes growth, harmony, freshness, and fertility. Green has strong emotional correspondence with safety. Dark green is also commonly associated with money.
Green has great healing power. It is the most restful color for the human eye; it can improve vision. Green suggests stability and endurance.

Blue

Blue is the color of the sky and sea. It is often associated with depth and stability. It symbolizes trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. Blue is considered beneficial to the mind and body.

Violet

The color purple is often associated with royalty, nobility, luxury, power, and ambition. Purple also represents meanings of wealth, extravagance, creativity, wisdom, dignity, grandeur, devotion, peace, pride, mystery, independence, and magic.