Red and blue color matching design

Quick answer：

Red and blue color matching in design is often associated with contrasting or complementary effects. Red, being a warm color, can evoke emotions like passion and energy, while blue, a cool color, is often linked to calmness and stability. When used together, they can create a striking visual contrast, which is why they are frequently used in graphic design, fashion, and interior design to draw attention or to create a sense of balance.