Color gradation refers to the smooth transition between different colors or shades. This technique is often used in art and design to create depth and dimension, making images more visually appealing. Gradation can occur in various forms, such as from light to dark or from one hue to another, allowing for a seamless blend that enhances the overall composition. In digital graphics, color gradation is commonly achieved through tools like gradient fills, which allow designers to select multiple colors and control their blending. This method is essential in creating realistic images, backgrounds, and effects, contributing to the overall aesthetic of the work.