all dress colors with yellow as the background are warm colors. The warm color system will generally give the impression of being gorgeous, mature and vigorous, while the achromatic system that is suitable for matching with these warm colors with colors, except white and black, it is better to use camel, brown and coffee colors. Cool colors are the colorful colors with blue as the bottom. It is better to choose black, gray and color if it is in harmony with the cold color tone, and avoid matching with camel and coffee colors. Matching skill Gradual change of color is used hierarchically. First, only one color is used, and different light and shade are used to give a harmonious and layered sense of rhythm.