Gradient color, unrealistic

Quick answer：

Gradient colors refer to a smooth transition between two or more colors. The term 'unrealistic' might suggest that the gradient does not appear natural or is not well-executed. In graphic design, achieving a realistic gradient involves careful selection of colors and their transition to create a visually pleasing effect. If a gradient looks unrealistic, it could be due to a mismatch of colors, poor blending techniques, or technical limitations.