The design of a red and blue collision color poster typically involves the use of contrasting colors to create visual interest and convey a message. Red and blue are complementary colors, which means they stand out against each other and can be used to emphasize certain elements of the design. This type of design might be used for marketing, art, or informational purposes, and can evoke a range of emotions from excitement to calmness depending on the context and how the colors are balanced.