Patch color definitions for Datacolor SpyderCheckr 48

Below you find the Datacolor SpyderCheckr 48 definition of patches in different color spaces, such as LAB, sRBG and AdobeRGB. Datacolor offers a lousy bitmap of the values which are difficult to read and impossible to use in a structured way. So there you go, a table of all the values that this color chart is suppose to represent:

Lab sRGB Adobe RGB
Number Patch Name L A B R G B R G B
1 1A Low Sat. Red 61.35 34.81 18.38 210 121 117 189 121 117
2 2A Low Sat. Yellow 75.5 5.84 50.42 216 179 90 205 178 96
3 3A Low Sat. Green 66.82 -25.1 23.47 127 175 120 141 174 122
4 4A Low Sat. Cyan 60.53 -22.6 -20.4 66 157 179 103 156 177
5 5A Low Sat. Blue 59.66 -2.03 -28.46 116 147 194 125 146 191
6 6A Low Sat. Magenta 59.15 30.83 -5.72 190 121 154 172 120 151
7 1B 10% Red Tint 82.68 5.03 3.02 218 203 201 213 202 200
8 2B 10% Green Tint 82.25 -2.42 3.78 203 205 196 202 204 195
9 3B 10% Blue Unit 82.29 2.2 -2.04 206 203 208 204 201 206
10 4B 90% Red Tone 24.89 4.43 0.78 66 57 58 66 60 60
11 5B 90% Green Tone 25.16 -3.88 2.13 54 61 56 59 63 59
12 6B 90% Blue Tone 26.13 2.61 -5.03 63 60 69 65 63 71
13 1C Lightest Skin 85.42 9.41 14.49 237 206 186 225 202 183
14 2C Lighter Skin 74.28 9.05 27.21 211 175 133 200 174 134
15 3C Moderate Skin 64.57 12.39 37.24 193 149 91 180 148 95
16 4C Medium Skin 44.49 17.23 26.24 139 93 61 127 93 65
17 SC Deep Skin 25.29 7.95 8.87 74 55 46 71 58 50
18 SC 95% Gray 22.67 2.11 -1.1 57 54 56 59 57 59
19 1D 5% Gray 92.72 1.89 2.76 241 233 229 238 233 229
20 2D 10% gray 88.85 1.59 2.27 229 222 220 226 221 219
21 3D 30% Gray 73.42 0.99 1.89 182 178 176 180 177 174
22 4D 50% Gray 57.15 0.57 1.19 139 136 135 137 135 134
23 5D 70% Gray 41.57 0.24 1.45 100 99 97 99 99 98
24 6D 90% Gray 25.65 1.24 0.05 63 61 62 65 63 64
25 1E Card White 96.04 2.16 2.6 249 242 238 247 242 237
26 2E 20% Gray 80.44 1.17 2.05 202 198 195 199 196 193
27 3E 40% Gray 65.52 0.69 1.86 161 157 154 158 156 153
28 4E 60% Gray 49.62 0.58 1.56 122 118 116 120 118 115
29 5E 80% Gray 33.55 0.35 1.4 80 80 78 81 81 79
30 6E Card Black 16.91 1.43 -0.81 43 41 43 46 46 47
31 1F Primary Cyan 47.12 -32.5 -28.75 0 127 159 39 126 157
32 2F Primary Magenta 50.49 53.45 -13.55 192 75 145 167 76 141
33 3F Primary Yellow 83.61 3.36 87.02 245 205 0 234 204 37
34 4F Primary Red 41.05 60.75 31.17 186 26 51 159 32 53
35 5F Primary Green 54.14 -40.8 34.75 57 146 64 94 145 71
36 6F Primary Blue 24.75 13.78 -49.48 25 55 135 41 58 132
37 1G Primary Orange 60.94 38.21 61.31 222 118 32 196 117 44
38 2G Blueprint 37.8 7.3 -43.04 99 86 96 70 89 156
39 3G Pink 49.81 48.5 15.76 195 79 95 170 80 94
40 4G Violet 28.88 19.36 -24.48 83 58 106 78 61 104
41 5G Apple Green 72.45 -23.6 60.47 157 188 54 165 186 69
42 6G Sunflower 71.65 23.74 72.28 236 158 25 218 157 46
43 1H Aqua 70.19 -31.9 1.98 98 187 166 130 186 166
44 2H Lavender 54.38 8.84 -25.71 126 125 174 125 124 171
45 3H Evergreen 42.03 -15.8 22.93 82 106 60 90 106 65
46 4H Steel Blue 48.82 -5.11 -23.08 87 120 155 98 119 152
47 SH Classic Light Skin 65.1 18.14 18.68 197 145 125 183 144 125
48 6H Classic Dark Skin 36.13 14.15 15.78 112 76 60 103 77 63

3 thoughts on “Patch color definitions for Datacolor SpyderCheckr 48”

  1. Hello, Many thanks for this , square 2G has a typo by the way, it should be RGB 58/88/159 , as per the pdf thingy. :)

  2. Note: their website says that, on the 48 chart, the right side has the “20% ramp” (100/80/60/40/20/0), and that you can zigzag with the “10% ramp” on the left panel to have a full ramp with 10% steps.

    Then, it says the 24 chart is just like the right side of the 48 chart (that is, the 20% ramp), but that the back has the “same 10% ramp”. That’s it. By their words, you may be led to believe that this is the complementary zigzag ramp, just printed on the back because the 24 model doesn’t have the space in the front. But that’s wrong. What is on the back is the very same 20% ramp (100/80/60/40/20/0) that you will find on the front, together with the larger 50% grey patch.

    I just measured the colors with different cameras, always taking pictures of the grey and colored sides of the 24 model. And indeed I found them to be equal. To be specific, I noticed a color difference of less than 1% (except in the darker patch, with around 3%), which is expected considering variations in camera noise and JPEG compression between the shots. Also, if it that were the 10% chart, we would expect the 60% square to be equal to the 50% larger patch. Not only that is clearly not the case, but I found a difference of around 10-12% in color values, which I guess is exactly what we would expect between 50% and 60% which confirms what we can see with our eyes.

    And I think that’s even better considering we can get the 40% value with a larger 50% patch on the same side. They are probably the most used.

    I’m saying this because I was very confused after reading their manual and I wondered if my eyes were tricking me.

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