Color appearance of objects under vivid colored led lights

Abstract

　Vivid colored LED light have a huge impact on human color perception. To investigate the color appearance of object color under vivid colored LED lights twenty-four color chips were assessed by five subjects using the elementary color naming method under ten lights with the increasing of vivid red; D65, R1, R2,… , and R9 which R9 is pure red LED. Data of eleven color chips covering hue were selected to plot on the polar diagram for analysis the amount of chromaticness and the hue angle changes. The results showed the changes of hue angle increased and decreased of chromaticness for more vivid color light, implying the deterioration of the color constancy with more vivid red color of LED lighting.