The Munsell color system is one system that specifies colors according to three color dimensions, hue, value, and chroma (difference from gray at a given hue and lightness).
Professor Albert H. Munsell, an artist, wanted to generate a “rational method to describe color” depending on the principle of “perceived equidistance”, and therefore would use decimal notation as an alternative to color names (that he felt were “foolish” and “misleading”). He first started work with the program in 1898 and published it 100 % form in Color Notation in 1905. The munsell soil color chart remains used today.
Munsell constructed his system around a circle with ten segments, arranging its colors at equal distances and selecting them in such a manner that opposing pairs would result in an achromatic mixture.
The machine includes an irregular cylinder using the value axis (light/dark) running up and down through it, along with the axis from the earth.
Dark colors are at the end in the tree and light-weight at the top, measured from 1 (dark) to 10 (light).
Each horizontal “slice” from the cylinder across the axis is a hue circle, that he split into five principal hues: red, yellow, green, blue, and purple, five intermediates, yellow-red, green-yellow, blue-green, purple-blue, and red-purple.
Munsell hue is specified by selecting one of these simple ten hues, and after that talking about the angle inside them from 1 to 10.
“Chroma” was measured out of the center of your wheel, with lower chroma being less saturated (washed out, for example pastels). Be aware that there is not any intrinsic upper limit to chroma. Different parts of the color space have different maximal chroma coordinates. For instance light yellow colors have considerably more potential chroma than light purples, because of the nature in the eye as well as the physics of color stimuli. This triggered a variety of possible chroma levels, as well as a chroma of 10 may or may not be maximal dependant upon the hue and value.
A color is fully specified by 85dexupky the 3 numbers. For example a reasonably saturated blue of medium lightness will be 5B 5/10 with 5B meaning colour in the middle of the blue hue band, 5/ meaning medium lightness, along with a chroma of 10.
The first embodiment of the system (the 1905 Atlas) had some deficiencies as being a physical representation from the theoretical system. They were improved significantly from the 1929 Munsell Book of Color and through a comprehensive group of experiments done by the Optical Society of America in the 1940’s leading to the notations (sample definitions) to the modern Munsell Book of Color. The device remains to be widely used in a range of applications and represents one of the best available data sets about the perceptual scaling of lightness, chroma and hue.
Advantages: A fairly simple system for comparing colors of objects by assigning them a pair of numbers depending on standard samples. Widely used in practical applications for example painting and textiles.
Disadvantages: Complementary colors usually are not on opposite sides, in order that one cannot predict the final results of color mixing adequately.