Since its introduction to China from the West in the late Ming and early Qing dynasties, watercolor painting has undergone a history of more than 300 years. Throughout its development, it has embraced both Chinese and Western cultures, absorbing traditional Western techniques and expressive forms in terms of color application, while integrating traditional Chinese ethnic culture and contemporary local spirit in terms of color aesthetics. This synthesis reflects a new Eastern aesthetic appeal and the cultural identity of China. This paper explores how color integrates with and transmits the beauty of Chinese local culture from multiple perspectives, including Eastern aesthetic connotations, contemporary concepts of color, and regionally distinctive visual language.