The chroma number refers to the saturation of
the colored pigment, and is a measure of the pigment's density (number of particles per area).
The 40 page Munsell book is pictured to the left.
The colors are specified by page number, major hue, value, and chroma.
For the system to work best, the illumination
must be standardized. This is due to the fact each color depends on the
percentage of light reflected from its patch.
The chroma number refers to the saturation of
the colored pigment, and is a measure of the pigment's density (number of particles per area).