The value of a hue defines how bright or dark a color is.

A brightness control determines value: decreasing brightness adds shade (black), while increasing brightness adds tint (white).

Decreasing brightness adds shade and brings a color closer to black
CHART: The color wheel before decreasing brightness CHART: The color wheel after decreasing brightness once CHART: The color wheel after decreasing brightness 2 times CHART: The color wheel after decreasing brightness 3 times

Increasing brightness adds tint and brings a color closer to white.
 CHART: The color wheel before increasing brightness CHART: The color wheel after increasing brightness once CHART: The color wheel after increasing brightness 2 times CHART: The color wheel after increasing brightness 3 times

In RGB and most computer systems, value is calculated as (R+G+B)/3.

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