R E F E R E N C E S
Lightness 2: the attribute of object colors by which the object appears to reflect or transmit more or less of the incident light
Hue 2c: the attribute of colors that permits them to be classed as red, yellow, green, blue, or an intermediate between any contiquous pair of these colors
Saturation 4a: chromatic purity: freedom from dilution with white b : degree of difference from the gray having the same lightness -used of an object color : degree of difference from the achromatic light-source color of the same brightness -used of a light-source color.
[Merriam-Webster's Collegiate Dictionary, 10th Edition. Springfield, MA, USA: Merriam-Webster, Inc. 1995.]