Who knows what color background cloth is best for shooting white clothes?

It must be black, no matter what color, it will change color if it is changed to other colors. If you look at it for a long time, it will produce white impurities, which will cause visual errors. It looks green because the colors are all in contrast. For example, gray will appear blue or purple in yellow environment, and white will appear yellow in blue or purple environment. In colored environment (except other colors calculated by black and white cloth), it will be colorless (black or purple).