Gradual color transition advertisement poster

Quick answer：

A gradual color transition advertisement poster refers to a promotional poster design that utilizes a smooth shift in color tones to create visual appeal and convey a message. These posters often use a gradient effect to transition between different colors, which can evoke emotions, highlight key elements, or represent a brand's identity. The design principles include color theory, composition, and typography to ensure the poster is effective in attracting attention and conveying the intended message.