GB/T 37370-2019Names and colorimetric characteristics of Chinese common colors (English PDF)

1 Scope

This Standard stipulates the names, color systems and typical chromaticity coordinates of Chinese common colors, as well as the mark numbers of Chinese color systems, and standard samples of Chinese common colors.

This Standard is applicable to the determination of color naming and chromaticity coordinates of common colors. It is also applicable to color correction and information communication during color reproduction and representation in relevant fields.

2 Normative References

The following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document.

GB/T 3977 Specification of Colors;

GB/T 3978 Standard Illuminants and Geometric Conditions;

GB/T 3979 Methods for the Measurement of Object Color;

GB/T 5698 Glossary of Color Terms;

GB/T 7921 Uniform Color Space and Color Difference Formula;

GB/T 15608 The Chinese Color System;

GB/T 15610 Method of Visual Appraisal of Metamerism;

GB/T 31430 Names and Colorimetric Characteristics of Traditional Colors in China

3 Terms and Definitions

What is defined in GB/T 5698, and the following terms and definitions are applicable to this document.

4 Names, Color Systems and Typical Chromaticity

Coordinates of Chinese Common Colors, Mark Numbers of Chinese Color Systems

4.1 Chinese common colors are divided into chromatic system and achromatic system.

Specifically speaking, chromatic system includes eight color tones, namely, brown, red, orange, yellow, green, cyan, blue and purple, as well as Chinese people's skin color and metal color.

4.2 Please refer to Appendix A for typical chromaticity coordinates of Chinese common colors and mark numbers of Chinese color systems.

4.3 The measurement conditions of chromaticity coordinates of Chinese common colors shall comply with methods for the measurement of object color in GB/T 3979.

Conduct the measurement under D65 standard illuminants and de:8° geometric conditions described in GB/T 3978. Through CIE1964 standard colorimetric system described in GB/T 3977, conduct specification of colors.

4.4 Mark numbers of Chinese color systems of Chinese common colors shall be calculated in accordance with the stipulations in GB/T 15608.

5 Standard Samples of Chinese Common Colors

5.1 Standard samples of Chinese common colors are constituted of color samples of corresponding color names and chromaticity values.

5.2 Tolerance of sample color difference in standard samples of Chinese common colors: chromatic system; achromatic system. Color difference shall be calculated in accordance with the stipulations in GB/T 7921.

5.3 Visual color appraisal conditions of standard samples of Chinese common colors shall comply with the stipulations in GB/T 15610. […]