In order to quantify the WLED's impact on color of Chinese traditional calligraphy and painting, and explore the practical applicability of using WLED as display lighting, an experiment was carried out on the RYGB type of WLED irradiated models of calligraphy and painting. And the color parameters was tested periodically to make curve charts of color coordinate and luminance over time. The impact of the WLED on hue, saturation, brightness was quantified based on the carve to provide evidence of application of WLED.