What kind of pattern is better for the color mode of the design image?

Q: What is the best mode for designing the color mode of an image?

A: In Photoshop, the color modes of an image are RGB mode, CMYK mode, GrayScale mode, and other color modes. The use of any mode for designing image patterns depends on the end use of the design image. If the designed image is to be printed or printed on printing paper, it is best to use the CMYK color mode so that the color seen on the screen is close to the output printing color or the printed color. If the design is for electronic media display (such as web pages, computer projection, video, etc.), the color mode of the image is best to use RGB mode, because the RGB mode is more vivid and richer in color, and the picture is also better. And there are only 3 channels in the image, the data volume is smaller, and the disk space is less. If the image is gray, use GrayScale mode is better, because even if the image is expressed in RGB or CMYK color mode, it still looks neutral gray color, but its disk space is much larger. In addition, if the gray image is to be printed, if it is expressed in the CMYK mode, there are four editions of the film and the printing, the cost will not be great, and it may cause color cast problems when the gray balance is not well controlled during printing. When the ink volume is too large, color shifts occur in gray images.

Source: Disc Production Online