Design images of adjacent color posters

Quick answer：

Adjacent color posters refer to designs that use colors that are close to each other on the color wheel. They create a harmonious and cohesive look. To design such posters, one should choose a base color and select colors that are nearby on the color wheel to complement it. This can be achieved using color theory principles, where colors opposite each other on the wheel are complementary, while colors next to each other are analogous. The goal is to create a visually appealing and balanced composition.