A colour which occurs along the grey scale from white to black; devoid of hue.
a color lacking hue; white or gray or black
A scanning procedure reproducing colour with only two process colours and black in any area of the reproduction.
The primary colours of light: red, green, and blue, used by scanners, monitors, and other computer devices. When combined, they produce white light.
Neutral colour & white, grey, or black & that has no hue.