Munsell

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Albert Munsell, Color Notation 1905

Munsell's color notation was the first to arrange the color perception components, hue, value, and chroma, into a three-dimensional arrangement. There 10 hues in Munsell's notation: R, YR, Y, GY, G, BG, B, PB, P, RP. Value ranges from 0 (black) to 10 (white). Chroma ranges from 0 (gray) to 30+. The hue is specified first, followed by value/chroma; e.g., 5R 3/4 is a red of value 3, chroma 4. There is a reasonable introduction to Munsell in the Wikipedia. Data for conversion from Munsell to CIE XYZ can be found here. An online tool for exploring Munsell (unfortunately, Windows only) can be found here.

Uncalibrated Munsell to RGB conversion tables

value R RP P PB B BG G GY Y YR
9 243 225 222 254 219 235 237 223 253 226 228 239 213 232 239 99 252 233 146 251 176 152 252 136 240 235 16 243 227 201
8 253 187 152 152 252 136 248 185 198 223 188 250 174 204 247 82 220 238 24 227 196 65 229 134 58 233 59 211 207 52
7 248 151 96 243 147 181 195 158 253 125 178 251 15 190 241 54 194 192 45 199 142 119 195 43 194 177 13 241 157 36
6 249 101 100 248 93 163 201 111 244 54 152 253 61 160 198 72 163 155 38 170 101 102 165 49 173 147 41 236 116 20
5 247 23 23 228 45 142 200 32 251 87 110 248 20 133 172 47 136 130 16 140 100 49 141 52 154 118 23 196 95 24
4 195 25 29 186 24 118 161 22 200 75 68 251 39 105 134 54 107 104 35 111 82 61 110 28 122 94 33 173 62 25
3 148 19 29 144 13 82 114 24 165 69 28 216 14 79 113 29 82 81 21 85 55 10 87 31 95 71 6 110 63 31
2 106 3 18 98 11 71 81 13 116 52 19 149 18 56 73 8 58 58 28 58 42 15 60 28 59 52 10 72 47 24


Uncalibrated neutral (gray) values

Neutral RGB
N0 0 0 0
N1 34 34 34
N2 52 52 52
N3 73 73 73
N4 97 97 97
N5 122 122 122
N6 147 147 147
N7 173 173 173
N8 200 200 200
N9 228 228 228
N9.5 243 243 243
N10 255 255 255
Hue, value, and chroma are all equal perceptual spacing!
5Y 8/10 and 5PB 4/20
Each hue goes from 0 to 10, e.g. 2.5RP; value goes from 0 to 10; and chroma goes from 0 to 30+