High-speed rail gradient color color matching pictures

Quick answer：

Gradient color matching in high-speed rail designs refers to the use of colors that gradually transition from one hue to another, often used to enhance visual appeal and convey a sense of speed or movement. These color schemes can be found in the livery of trains, the interiors of train stations, or in promotional materials. The choice of colors and their transition can evoke emotions, align with branding, and contribute to the overall aesthetic experience.