Abstract:To verify the evaluation performance of different metamerism indices, based on the Kubelka-Munk color matching theory, four sets of near metamerism pairs were obtained through the printing suitability instrument proofing. Based on the comparison method in the psychophysical experimental method, 40 observers with normal color vision were organized to carry out the color difference ranking evaluation experiment. Correlation coefficients were used to analyze the consistency between objective evaluation of metamerism indices and subjective evaluation of observers. The research results showed that the correlation coefficients between the special metamerism index and the subjective evaluation under D50 and TL84 light sources were both higher than 0.7, and the correlation coefficients of the general metamerism index model based on the long, medium and short cone wavelength sensitivity weighting algorithm were higher than 0.55, indicating that the evaluation performance of the metamerism degree of the special metamerism and the lms-MI model was better. Therefore, in the development of spectral color matching and lighting indicator, special metamerism index could be selected as the metamerism degree evaluation index under illuminant D50 and TL84, while the lms-MI model could be used to select the best spectrum when the light source was not dependent.