This study explores how exhibition color, viewed from the perspective of regional culture, contributes to narrative construction and emotional experience in historical museums. Based on regional color characteristics, the research reviews existing theories on color, narrative, and spatial experience, and examines the exhibition spaces of the Zhejiang Museum, Hubei Museum, and Shanghai Museum. The analysis shows how different regional backgrounds shape color use in exhibition spaces and how color moves from a physical feature to a cultural meaning. The study also outlines a color-experience path that includes emotional arousal, narrative engagement, and cultural identification. The findings indicate that color is not only a visual element of exhibition design but also an important factor in guiding historical understanding, emotional response, and cultural recognition. This research provides practical and theoretical support for color design in historical museums grounded in regional culture.