Table I.
| Munsell Notation |
X | Y | Z | x | y | Dominant Wave-Length |
Excitation Purity | ||
| 10 | B | 7/6 | 0.4203 | 0.4614 | 0.7937 | 0.2509 | 0.2754 | 482.2 | 26.0 |
| 7/4 | .4217 | .4552 | .6987 | .2676 | .2889 | 482.8 | 18.5 | ||
| 6/6 | .2936 | .3283 | .6033 | .2396 | .2680 | 482.3 | 30.9 | ||
| 6/4 | .3140 | .3382 | .5605 | .2589 | .2789 | 481.7 | 22.7 | ||
| 5/6 | .1963 | .2193 | .4454 | .2280 | .2547 | 481.3 | 36.6 | ||
| 5/4 | .1986 | .2154 | .3805 | .2500 | .2711 | 481.1 | 26.7 | ||
| 4/8 | .1171 | .1338 | .3337 | .2003 | .2289 | 480.7 | 49.4 | ||
| 4/6 | .1232 | .1350 | .3100 | .2168 | .2376 | 480.0 | 42.7 | ||
| 4/4 | .1250 | .1355 | .2481 | .2458 | .2664 | 480.9 | 28.9 | ||
| 3/8 | .0730 | .0849 | .2423 | .1824 | .2121 | 480.4 | 58.0 | ||
| 3/6 | .0699 | .0792 | .1955 | .2028 | .2298 | 480.5 | 48.6 | ||
| 3/4 | .0693 | .0763 | .1580 | .2283 | .2513 | 480.7 | 36.9 | ||
| B | 8/4 | .5415 | .5984 | .8100 | .2777 | .3069 | 487.2 | 12.9 | |
| 8/2 | .5737 | .6193 | .8130 | .2860 | .3087 | 486.9 | 9.6 | ||
| 7/6 | .3906 | .4467 | .6979 | .2544 | .2910 | 485.2 | 22.9 | ||
| 7/4 | .4054 | .4546 | .6576 | .2671 | .2996 | 486.2 | 17.4 | ||
| 7/2 | .4295 | .4657 | .6139 | .2846 | .3086 | 487.1 | 10.1 | ||
| 6/6 | .2575 | .3103 | .5576 | .2288 | .2757 | 484.8 | 34.0 | ||
| 6/4 | .2869 | .3249 | .5199 | .2535 | .2871 | 484.6 | 23.8 | ||
| 6/2 | .2962 | .3206 | .4662 | .2735 | .2960 | 484.0 | 15.4 | ||
| 5/6 | .1633 | .2025 | .4046 | .2120 | .2629 | 484.2 | 41.4 | ||
| 5/4 | .1660 | .1958 | .3466 | .2343 | .2764 | 484.4 | 31.8 | ||
| 5/2 | .1823 | .1994 | .2913 | .2709 | .2963 | 484.6 | 16.4 | ||
| 4/8 | .0935 | .1163 | .2701 | .1948 | .2423 | 482.9 | 50.0 | ||
| 4/6 | .1033 | .1283 | .2749 | .2039 | .2533 | 483.5 | 45.3 | ||
| 4/4 | .1225 | .1438 | .2598 | .2328 | .2733 | 484.0 | 32.8 | ||
| 4/2 | .1246 | .1386 | .2085 | .2642 | .2938 | 484.8 | 19.2 | ||
| 3/6 | .0624 | .0832 | .1854 | .1885 | .2514 | 484.3 | 51.2 | ||
| 3/4 | .0600 | .0744 | .1450 | .2147 | .2663 | 484.5 | 40.0 | ||
| 3/2 | .0662 | .0739 | .1171 | .2574 | .2873 | 484.1 | 2.3 | ||
| 2/2 | .0371 | .0417 | .0632 | .2613 | .2937 | 485.2 | 20.1 | ||
| 10 | BG | 7/4 | .4008 | .4619 | .6258 | .2693 | .3103 | 489.2 | 15.6 |
| 6/6 | .2675 | .3412 | .5083 | .2395 | .3055 | 489.1 | 27.2 | ||
| 6/4 | .2743 | .3266 | .4606 | .2584 | .3077 | 488.9 | 20.0 | ||
| 6/2 | .1649 | .2191 | .3697 | .2188 | .2907 | 487.5 | 36.1 | ||
| 5/4 | .1713 | .2094 | .3142 | .2465 | .3013 | 488.1 | 25.0 | ||
| 4/6 | .0991 | .1345 | .2266 | .2153 | .2923 | 487.9 | 37.2 | ||
| 4/4 | .1056 | .1322 | .1977 | .2425 | .3036 | 488.6 | 26.2 | ||
| 3/6 | .0500 | .0724 | .1351 | .1942 | .2812 | 487.3 | 46.0 | ||
| 3/4 | .0605 | .0791 | .1298 | .2246 | .2936 | 487.7 | 33.7 | ||
| BG | 8/2 | .5473 | .6106 | .7010 | .2944 | .3285 | 500.5 | 5.2 | |
| 7/4 | .3917 | .4616 | .5549 | .2782 | .3278 | 495.6 | 11.1 | ||
| 7/2 | .4233 | .4754 | .5598 | .2902 | .3260 | 496.9 | 6.7 | ||
| 6/6 | .2760 | .3518 | .4525 | .2555 | .3257 | 493.0 | 19.8 | ||
| 6/4 | .2815 | .3438 | .4322 | .2662 | .3251 | 493.4 | 15.6 | ||
| 6/2 | .2903 | .3314 | .4045 | .2829 | .3229 | 493.8 | 9.8 | ||
| 5/6 | .1566 | .2174 | .2962 | .2337 | .3244 | 492.3 | 27.9 | ||
| 5/4 | .1660 | .2103 | .2762 | .2544 | .3223 | 492.3 | 20.2 | ||
| 5/2 | .1818 | .2119 | .2612 | .2776 | .3236 | 493.7 | 11.5 | ||
Some 400 color samples were obtained from the Munsell Color Company in November, 1934. These samples, backed by a standard white material, were compared spectrophotometrically against a freshly smoked surface of magnesium oxide deposited on magnesium carbonate. The spectrophotometer employed was of a type[1] that records the diffuse reflection factors of the sample relative to those of the magnesium-oxide standard. These spectral reflection factors were converted by integration into tristimulus values, using a selected-ordinate method with thirty ordinates.
In Table I, column 1 indicates the Munsell designation of the color. Columns 2, 3, and 4 give the tristimulus values for the 1931 I.C.I. standard observer and Illuminant C. Columns 5 and 6 list the
- ↑ J. Opt. Soc. Am. 25, 305 (1935).
