man go argue this with a color expert or whom ever. Black = 0 of red, green, and blue. Since contigious means any combination idiots. Not only that you both havent read "compare BRIGHTNESS 2, LIGHTNESS 2, SATURATION 4" tards. Ive talked to a Professional photographer about this in the past, thus it is appropriate to call it either a tone/half tone or hue you fuck tards. Go fucking play with any image editor, like photoshop or paint shop, and ask yourselves would professionals make hues(tones/half tones) for black/gray?