Red and blue display matching

Quick answer：

This refers to a design or display technique that involves combining the colors red and blue together. In the field of color theory, red and blue are complementary colors, which means they contrast each other and can create a visually striking effect when used together. This technique is often used in interior design, fashion, and advertising to draw attention and evoke certain emotions. It is based on the principles of color psychology and the way humans perceive colors.