Abstract: A hue comparison device allows to precisely identify each hue by three attributes: hue angle, hue chroma, and hue depth. The device includes a number of hue sheets stacked together in a predetermined sequence. Each hue sheet contains a central standard gray area surrounded by hue blocks arranged in coaxial hue circles. Angular position of each hue block relative to a predetermined reference point on the hue sheet defines the color (i.e., the position of the hue on the spectral scale). The hue blocks of each hue circle are located at equal distance from the central standard gray area of the hue sheet. The hues of each hue circle have a predetermined chroma parameter which increases from a hue circle to the next hue circle in the direction from the center to the periphery of the hue sheet in predetermined increments. The difference in the number of hue blocks between adjacent hue circles equals six (6) hue blocks.