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HSL color model

The hue, saturation, and lightness color model, frequently abbreviated as HSL, is a digital representation of color. Originally invented as a way to add compatible color to television broadcasts, HSL represents "pure white" as any color where lightness (L) is at its maximum. This is in contrast to HSV, which represents pure white as the minimum saturation (S) and maximum value (V).

HSL is unable to represent many color spaces in common use and is largely deprecated.

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