1. The combination of blue, white and red is the most visually beautiful effect, so many trademarks and national flags use this combination. Blue and yellow are opposite colors, and contrasting colors are more eye-catching. However, in practical applications, solid colors are not used for direct matching, as it feels stiff. Generally, using contrasting colors of complementary colors or excessive color matching will make people feel soothing and will not cause visual jump.

2. Vivid blue combined with red makes people look charming and pretty, but attention should be paid to the appropriate proportion of blue and red.

3. A nearly black blue fitted jacket, paired with a white shirt and a bow tie, will make people look mysterious and romantic when attending some formal occasions. Pairing a sharp-curved blue jacket with a knee-length blue skirt, and then embellishing it with a white shirt, white socks, and white shoes will exude a light and charming atmosphere.