Focusing on the lack of cultural identity in the spatial color design of contemporary museums, this study systematically explores the color system of Jiangnan gardens in the Song Dynasty and constructs a three-dimensional translation path of color perception-spatial narrative-artistic conception construction. It aims to realize the in-depth integration of traditional garden color translation and spatial narration in contemporary museums. Based on the core aesthetic of simplicity and returning to authenticity, it highlights the contemporary inheritance of literati artistic conception in the Song Dynasty, providing theoretical support and practical reference for the cultural activation and innovative color design of contemporary museum spaces.