This paper delves into the application of high-visibility colors in the uniforms of urban rail transit maintenance personnel. By analyzing the characteristics of the rail transit working environment, the principles of color psychology, and the performance of colors under different conditions, it proposes a high-visibility color design scheme for such uniforms. The study reveals that well-selected and matched colors can significantly enhance the visibility of maintenance personnel in complex environments, ensure operational safety, and strengthen corporate image and employee identity. The findings offer a scientific basis and practical guidance for designing more efficient and innovative uniforms.