The degree to which Munsell hue, value, chroma and the Swedish Natural Color System variables of blackness, whiteness, redness, yellowness, greenness, blueness describe the same color space is shown by simple formulas.
Deane B. Judd and Dorothy Nickerson, "Relation between Munsell and Swedish Natural Color System scales," J. Opt. Soc. Am. 65, 85-90 (1975)