On the flip side of the spectrum are the cool colors which include green, blue, and purple. These colors are often used to calm the mind or to show peace and clarity, but are not limited to that. They can also bring to mind feelings of indifference or sadness.

Also, each individual color can have meanings.

Blue is a color that means peace, tranquility, calm, stability, harmony, unity, trust, truth, conservatism, confidence, security, order, cleanliness, loyalty, the sky, water, technology, cold, and depression. Blue has the ability to lower body temperature, slow the pulse rate, reduce appetite, and is considered a business color because it reflects reliability.

Black is the absence of light and color. It is used to show power, sophistication, elegance, wealth, fear, mystery, evil, anonymity, depth, style, unhappiness, remorse, sadness, underground, anger,

mourning and death.

Green is a common favorite color. It represents nature, health, environment, renewal, health, youth, spring, vigor, fertility, jealousy, inexperience, envy, and misfortune. Its cool  qualities sooth, calm, and have great healing power. It is often word by surgeons in operating rooms.

Orange is a mix of yellow and red. Orange is a warm color like red, but is more tranquil. Orange expresses energy. It has luminous qualities and is good for attracting attention and drawing the eye. Orange is for that reason used on safety vests and caution signs very often. It brings up memories of fall leaves, pumpkins and halloween. It symbolizes enthusiasm, warmth, balance, flamboyancy, vibrance, and demands attention.

Purple represents royalty in many colors, and was often the color most prominent on the robes of kings. Purple dye was made from the mucous gland of a snail. It required thousands of snails to create just 1 gram of dye, so it was a color that only nobles could afford. It also is used to show spirituality, wisdom, nobility, mystery, ceremony, transformation, arrogance, cruelty, mourning, enlightenment, and power. Purple is an exotic color.

Red is the color that draws the most attention and people pay attention to the most. It is the most energetic and warm color of the spectrum. People associate love, Valentines, danger, strength, speed, anger, desire, lust, violence, emergency exit signs, stop signs, and blood. Red is a good color to invoke a fight-or-flight response, raise blood pressure and make the heart beat more rapidly. Red would not be the color of choice in a psychiatric ward, prison, or hospital.

White is what we see when all colors are perfectly blended together. it represents purity, reverence, simplicity, cleanliness, humility, precision, peace, innocence, birth, snow, youth, winter, good, sterility, and marriage. We use white in figures of speech such as “a white lie.” We also associate white with the good guy in old western movies.

Yellow represents happiness, joy, optimism, idealism, imagination, hope, philosophy, sunshine, summer, gold, dishonesty, cowardice, jealousy, deceit, illness, betrayal, covetousness, hazard, spirituality and inspiration. The yellow rose is a symbol of friendship, less passionate and threatening than the red ones.

Color is used in advertisements to bring the right emotions for a product to the consumers head. For instance if you want them to be passionate about something use red, if you want them to be calm use blue, if you want them to feel loyalty use yellow. Also, reds, oranges and yellows draw the eye.