Color design pairing of red and blue

Quick answer：

The color design pairing of red and blue is a classic combination that has been used in various fields, such as fashion, interior design, and art. Red and blue are complementary colors, meaning they contrast each other and create a striking visual effect. In design, this pairing can evoke emotions like energy, passion, and balance. It's important to consider the context and the intended message when using red and blue together to ensure a harmonious and effective design.