Repetitive gradient plane design posters are a type of graphic design that features a repetitive pattern of gradients. These designs often use a series of colors that transition smoothly from one to another, creating a visually appealing and cohesive look. They are commonly used in marketing materials, advertisements, and artistic projects to convey a sense of continuity and fluidity. The design elements can vary, including the number of colors, the direction of the gradient, and the overall composition of the poster.