The meaning of red and blue combination

Quick answer：

The combination of red and blue in design and aesthetics can convey a variety of meanings. Red is often associated with passion, energy, and danger, while blue is linked to calmness, stability, and trust. Depending on the context and the balance between the colors, the overall message can range from harmony to conflict. In branding, red and blue can represent a balance between warmth and coolness, while in art, they can evoke contrasting emotions.