For the description of color difference, it is generally a personal feeling, and there is no uniform standard, so everyone's conclusions may be a little different.

Because all colors are composed of three primary colors (red, yellow, blue or red, yellow and green), we will use such words to describe them, such as red and lack of red. By comparing the colors in the light box, it can be judged by naked eyes that there are too many or too few primary colors in a certain color, which are described by red, yellow, blue, green and gray.

Of course, because they all feel it, sometimes there will be deviations. For example, a certain color is red or yellow, which may mean the same thing.

If you are color blind or weak, you can't see it. In addition, different light sources will have different effects, so it is required to use a light box or a specific light source so that all parties can unify the color effect.

In addition, there is now a special machine that can analyze the fabric spectrum, so it can automatically compare your fabric with the original color difference, which colors are missing and so on. But this machine is not available in all factories. There are even fewer words from foreign trade companies, so most of them are still distinguished by human eyes.