The Munsell color method is a color system that specifies colors according to three color dimensions, hue, value, and chroma (difference from gray at the given hue and lightness).
Professor Albert H. Munsell, an artist, wanted to produce a “rational method to describe color” in line with the principle of “perceived equidistance”, and that would use decimal notation as opposed to color names (which he felt were “foolish” and “misleading”). He first started focus on the machine in 1898 and published it in full form in Color Notation in 1905. The munsell color chart has become used today.
Munsell constructed his system around a circle with ten segments, arranging its colors at equal distances and selecting them in such a way that opposing pairs would result in an achromatic mixture.
The machine consists of an irregular cylinder using the value axis (light/dark) running down and up through it, as does the axis of your earth.
Dark colors are in the bottom of the tree and light towards the top, measured from 1 (dark) to 10 (light).
Each horizontal “slice” in the cylinder over the axis is really a hue circle, that he split up 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 those ten hues, and then making reference to the angle inside them from 1 to 10.
“Chroma” was measured out from the center in the wheel, with lower chroma being less saturated (washed out, including pastels). Note that there is no intrinsic upper limit to chroma. Different areas of colour space have different maximal chroma coordinates. For instance light yellow colors have considerably more potential chroma than light purples, due to nature of the eye as well as the physics of color stimuli. This led to a wide range of possible chroma levels, along with a chroma of 10 may or may not be maximal dependant upon the hue and value.
One is fully specified by 85dexupky the three numbers. For instance a fairly saturated blue of medium lightness could be 5B 5/10 with 5B meaning colour in the midst of the blue hue band, 5/ meaning medium lightness, and a chroma of 10.
The very first embodiment from the system (the 1905 Atlas) had some deficiencies as a physical representation in the theoretical system. They were improved significantly from the 1929 Munsell Book of Color and thru a comprehensive combination of experiments done by the Optical Society of America inside the 1940’s causing the notations (sample definitions) for the modern Munsell Book of Color. The program remains to be widely used in a range of applications and represents one of the best available data sets on the perceptual scaling of lightness, chroma and hue.
Advantages: A comparatively simple system for comparing colors of objects by assigning them a collection of numbers based upon standard samples. Commonly used in practical applications like painting and textiles.
Disadvantages: Complementary colors will not be on opposite sides, in order that one cannot predict the outcomes of color mixing perfectly.