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 xyY can be found here. An online tool for exploring Munsell (unfortunately, Windows only) can be found here.

Uncalibrated Munsell to RGB conversion tables (gamma 2.2)

value/hue 5R 5RP 5P 5PB 5B 5BG 5G 5GY 5Y 5YR
9 254 221 217 248 222 229 237 223 253 217 229 249 213 232 239 99 252 233 146 251 176 152 252 136 240 235 16 255 222 197
8 252 184 177 252 181 204 225 185 255 167 203 255 174 204 247 82 220 238 24 227 196 65 229 134 58 233 59 254 187 133
7 253 143 136 255 137 182 213 147 253 124 176 248 15 190 241 54 194 192 45 199 142 119 195 43 194 177 13 253 149 39
6 253 95 95 252 86 163 206 102 253 52 150 251 61 160 198 72 163 155 38 170 101 102 165 49 173 147 41 217 125 27
5 244 8 60 231 28 142 198 30 248 38 124 211 20 133 172 47 136 130 16 140 100 49 141 52 154 118 23 183 101 14
4 191 26 52 184 20 117 160 17 198 5 98 176 39 105 134 54 107 104 35 111 82 61 110 28 122 94 33 146 80 21
3 143 24 45 138 19 92 122 8 150 22 74 132 14 79 113 29 82 81 21 85 55 10 87 31 95 71 6 111 60 21
2 102 13 41 98 11 71 87 10 106 18 52 95 18 56 73 8 58 58 28 58 42 15 60 28 59 52 10 83 41 10


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+