Range of Hue in Munsell color chart is

Munsell colour chart is a colour space that specifies colour based on three properties of colour that is hue, Chroma (colour intensity) and Value(lightness). Hue stands for basic colour.
It was created by Professor Albert H. Munsell in the first decade of the 20^th century.
Each horizontal circle Munsell divided into five principal hues i.e. Red, Yellow, Green, Blue and Purple. The range of hues in the Munsell colour chart is 0 - 10.