Red

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Red is the color that is on the outside edge of the rainbow. it is one of the three primary colors, along with blue and yellow. Red light has a wavelength between 630-760 nm.

Red is the color of blood and tomatoes. it is sometimes used to mark things that are wrong, important, or dangerous.

[edit] Meaning of Red

Red can represent passion, anger, or love. In many countries, a red light shows cars when they should stop.

In politics, "red" is related to Communism. The "Red Army" can refer to the army of the old Soviet Union, or the People's Republic of China. it is also related to the Red Brigade.

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.

Red brings text and images to the foreground. Use it as an accent color to stimulate people to make quick decisions; it is a perfect color for 'Buy Now' or 'Click Here' buttons on Internet banners and websites. In advertising, red is often used to evoke erotic feelings (red lips, red nails, red-light districts, 'Lady in Red', etc). Red is widely used to indicate danger (high voltage signs, traffic lights). This color is also commonly associated with energy, so you can use it when promoting energy drinks, games, cars, items related to sports and high physical activity.