CIE 1931 XYZ colors


The colors.xyz vocabulary implements CIE 1931 XYZ colors, together with an alpha channel.
xyza

<xyza> ( x y z alpha -- xyza )

>xyza ( color -- xyza )


For more information, see https://en.wikipedia.org/wiki/CIE_1931_color_space

See also
Colors