1, red can be matched with blue-gray border, red and blue-gray are very foreign, and blue-gray is a very stable color, which can also reduce the publicity of red.

2, with white: simple and generous, eye-catching, but monotonous.

3, with black: fashion, classic, but deeper.

4, with yellow: bright, sunny, very China. From the psychological point of view and light perception, if red is used, the border color should not be black or close to red. Bright colors such as white, yellow and green are more suitable.