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Lab color space Scientific approach.
L*a*b* (CIELAB, LAB) color space describes all possible colors in an abstract, three-dimensional space
Each color is described with three coordinates:
L* = luminance a* = green-red component b* = blue-yellow component
100
L* (black to white)
127
127
0
-128
-128
b* (blue to yellow)
a* (green to red)
Pro tip: The axes of the LAB space are actually pretty intuitive color dimensions:
Theoretical L*a*b* color space In actual applications the Lab color space is reduced to available RGB spectrum
Colors visible for human eye in L*a*b* color space
L* = color brightness (black-to-white) a* = color tint (green-to-red/magenta) b* = color temperature (blue-to-yellow/orange)
Terms "tint" and "temperature" are commonly used in digital photography and image editing.
Lab color space is not very popular among digital artists, it is however a precise, device-independent color definition used in science and industry. In Infinite Painter 7 you can define colors using Lab coordinates (see page 134).
Infinite Painter’s Manual
ref: manual_studio_color_lab
Studio • Color • Page 110
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