This function creates colors of class “LAB”; a subclass of the virtual
these arguments give the L, A and B coordinates of the colors.
The values can be provided in separate
a vector of names for the colors (by default the row names of
B values give the coordinates of the
colors in the CIE L*a*b* space. This is a transformation
of the 1931 CIE XYZ space which attempts to produce perceptually based axes.
Luminance takes values between 0 and 100, and the other coordinates
typically take values between -100 and 100, although these values can also
be exceeded by highly saturated colors. The a and b coordinates
measure positions on green/red and blue/yellow axes.
An object of class
LAB which inherits from class
1 2 3 4 5 6 7
R G B [1,] 0.2655087 0.5308088 0.871805 L A B [1,] 76.00763 -4.987872 -28.84153
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