What color is the color matching of ancient books?

Mode is used for output purposes, and RGB is light-emitting mode, which is used for digital products such as monitors and mobile phones. CMYK is a pigment mode, which is used for printing, printing, inkjet printing, photographing and so on. . The color gamut of RGB color is larger than that of cmyk color, so if it is used for printing, you need to switch to cmyk mode and then adjust the color. Otherwise, when RGB is adjusted and then converted to cmyk mode, there will be color changes (it will be darker, because some colors are beyond the color gamut and will be automatically converted to cmyk color gamut). RGB mode is used in networks, electronic digital and other places. .