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 enhances human metabolism, increases respiration rate, and raises blood pressure. It has very high visibility, which is why stop signs, stoplights, and fire equipment are usually painted red. In heraldry, red is used to indicate courage. It is a color found in many national flags.
The color black can represent; Power, sexuality, sophistication, formality, elegance, wealth, mystery, fear, unhappiness, depth, style, evil, sadness, remorse, anger, anonymity, underground, good technical color, mourning, and death (Western cultures).
Green symbolizes: life, nature, fertility, well being Green is the color of nature, fertility, life. Grass green is the most restful color. Green symbolizes self-respect and well being. Green is the color of balance. It also means learning, growth and harmony. Green is a safe color, if you don’t know what color to use anywhere use green.
Green is favored by well balanced people. Green symbolizes the master healer and the life force. It often symbolizes money. It was believed green was healing for the eyes. Egyptians wore green eyeliner. Green eyeshades are still used. You should eat raw green foods for good health. Friday is the day of green. Green jade is a sacred stone of Asia.