Color - (Lightness|Value|Tone) (White, Gray, Black scale)
1 - About
Lightness, also known as value or tone, is a relative color property.
Some colors are naturally:
- light like yellow (high lightness, high value)
- darker, like violet (low lightness, low value)
Black, white and gray are values without color. (without hue ?)
- White is the highest possible value
- Black is the lowest value.
- Gray is the a medium value. The midpoint between black and white, neither dark nor light.
A value is linear and progressive.
In subtractive color (i.e. paints) value changes can be achieved by adding black or white to the color.
- Adding white paint will make any pigment lighter.
- Adding black paint will make most pigments darker, but will cause yellow paint to shift in hue to green.
The hues have a natural value where they look the purest. All hues can be made in all values.
Value can exist without hue (see achromatic).
2 - Articles Related
3 - Term
Various color models have an explicit term for this property.