In the narrative transformation of contemporary art exhibitions, color has gradually evolved from a formal, decorative element into a narrative medium with constructive capabilities. This paper examines the functional transformation of color in art exhibitions, with a primary focus on its pivotal shift from a "visual element" to a "narrative medium". It explores the operational mechanisms and empowering effects of color during this process. Through theoretical analysis and case studies, this paper systematically demonstrates how color, by virtue of its symbolism, spatiality, and interactivity, reconstructs the narrative structure, spatial experience, and participatory models in exhibitions. This paper aims to clarify the intrinsic logic and contemporary value of color as a narrative medium, thereby providing a theoretical framework and practical strategies for the narrative innovation and experiential design of art exhibitions.