Design drawing with red and blue in sharp contrast

Quick answer：

The phrase '正红配正蓝的设计图' refers to a design drawing featuring a stark contrast between bright red and bright blue colors. This type of design can be found in various artistic and graphic contexts, often used to convey a sense of energy or to make a bold statement. In graphic design, the use of complementary colors like red and blue can create a striking visual effect, often used to draw attention or to evoke emotions. The design may be applied in fashion, interior design, or advertising, among other areas.