A html color code is an identifier used to represent a color on the web. Common forms of these codes are as a keyword name, a hexadecimal value, a RGB (red, green, blue) triplet, and a HSL (hue, saturation, lightness) triplet. Each form allows a choice of 16,777,216 colors.
For example, the color red can be identifier using the following formats:
red (keyword name)
(0, 100%, 50%) (HSL)
Because there are so many colors to choose from, tools have been created to make the task of selection much simpler. A color picker allows a user to select a color by clicking on visual range of color to pin-point an exact code. A color chart provides a listing of common colors for quick selection.
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