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
9 254 221 217 248 222 229 237 223 253 217 229 249 181 238 252 73 254 233 113 254 190 205 244 46 253 228 111 255 222 197
8 252 184 177 252 181 204 225 185 255 167 203 255 81 218 255 56 223 207 46 228 161 176 215 8 231 199 34 254 187 133
7 253 143 136 255 137 182 213 147 253 124 176 248 37 189 225 57 193 181 43 197 140 151 187 12 202 172 23 253 149 39
6 253 95 95 252 86 163 206 102 253 52 150 251 30 160 192 47 164 155 32 167 120 128 158 36 173 145 17 217 125 27
5 244 8 60 231 28 142 198 30 248 38 124 211 28 132 160 45 135 129 10 139 98 104 131 29 143 120 34 183 101 14
4 191 26 52 184 20 117 160 17 198 5 98 176 18 105 129 33 107 104 34 109 80 82 105 23 114 95 27 146 80 21
3 143 24 45 138 19 92 122 8 150 22 74 132 31 79 95 28 81 80 28 83 62 61 80 19 87 72 23 111 60 21
2 102 13 41 98 11 71 87 10 106 18 52 95 10 57 71 8 58 58 25 58 45 42 57 12 63 51 11 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+