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Xrite Original ColorChecker Card

Product Information
Brand: X-Rite

The Original ColorChecker Card from Xrite is a checkerboard array of 24 scientifically prepared colored squares in a wide range of colors. Many of these squares represent natural objects of special interest, such as human skin, foliage and blue sky. These squares are not only the same color as their counterparts, but also reflect light the same way in all parts of the visible spectrum. Because of this unique feature, the squares will match the colors of natural objects under any illumination and with any color reproduction process.

The ColorChecker provides a totally non-subjective standard of comparison to help determine the true color balance of any color rendition system, and it provides the needed standard for comparing, measuring and analyzing differences in color reproduction in various processes, thereby avoiding costly mistakes.

• Achieve true-to-life color reproduction.
• Minimize tedious trial and error color adjustments
• Simplify camera and studio lighting balance
• Large Size: 8.25 x 11" (21.5 x 27.9 cm)

There used to be a “Digital ColorChecker (DCC).” It turned out to be unreliable; it's now discontinued. There's a a “ Digital ColorChecker Semi Gloss (SG) ”; it offers 140 colour and grey patches, including (near the centre) the original 24 ColorChecker patches.

X-Rite does not publish spectral reflectance data for the ColorChecker. (Spectral data is however available from Gretag for its big brother, the ColorChecker DC.) The ColorChecker used to come with an insert sheet containing colorimetric data, referenced to Illuminant C. I have entered, checked, and double-checked the data on that sheet. The Hue, Value, and Chroma columns are in Munsell notation. (I made a minor editorial change: I indicate Munsell chroma value of zero for the grayscale patches.)

No	Name	CIE_x	CIE_y	CIE_Y	Hue	Value	Chroma	ISCC_NBS_Name
1	dark skin	0.400	0.350	10.1	3 YR	3.7	3.2	moderate brown
2	light skin	0.377	0.345	35.8	2.2 YR	6.47	4.1	light reddish brown
3	blue sky	0.247	0.251	19.3	4.3 PB	4.95	5.5	moderate blue
4	foliage	0.337	0.422	13.3	6.7 GY	4.2	4.1	moderate olive green
5	blue flower	0.265	0.240	24.3	9.7 PB	5.47	6.7	light violet
6	bluish green	0.261	0.343	43.1	2.5 BG	7	6	light bluish green
7	orange	0.506	0.407	30.1	5 YR	6	11	strong orange
8	purplish blue	0.211	0.175	12.0	7.5 PB	4	10.7	strong purplish blue
9	moderate red	0.453	0.306	19.8	2.5 R	5	10	moderate red
10	purple	0.285	0.202	6.6	5 P	3	7	deep purple
11	yellow green	0.380	0.489	44.3	5 GY	7.1	9.1	strong yellow green
12	orange yellow	0.473	0.438	43.1	10 YR	7	10.5	strong orange yellow
13	blue	0.187	0.129	6.1	7.5 PB	2.9	12.7	vivid purplish blue
14	green	0.305	0.478	23.4	0.25 G	5.4	8.65	strong yellowish green
15	red	0.539	0.313	12.0	5 R	4	12	strong red
16	yellow	0.448	0.470	59.1	5 Y	8	11.1	vivid yellow
17	magenta	0.364	0.233	19.8	2.5 RP	5	12	strong reddish purple
18	cyan	0.196	0.252	19.8	5 B	5	8	strong greenish blue
19	white	0.310	0.316	90.0	N	9.5	0	white
20	neutral 8	0.310	0.316	59.1	N	8	0	light gray
21	neutral 6.5	0.310	0.316	36.2	N	6.5	0	light medium gray
22	neutral 5	0.310	0.316	19.8	N	5	0	medium gray
23	neutral 3.5	0.310	0.316	9.0	N	3.5	0	dark gray
24	black	0.310	0.316	3.1	N	2	0	black

Xrite Original ColorChecker Card

Xrite Original ColorChecker Card

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