Present color management model pays attention to the color rendering principle analysis of different color devices. Alternatively

it only controls the input and output of the model that makes color conversion accuracy low. With regard to these problems

a new color management model is presented by analyzing the color rendering principle of CRT monitor. The standard color target is taken for experimental sample

and the paper substitutes color blocks in color shade district for complete color space to solve the difficulty of sample color block selecting in color adjustment of CRT monitor by deducing final color management model. Second

parameters of Yule-Nielson equation are reinterpreted. Thus

it can be used for nonprinting dot image

which can only be used for printing dot image originally. Then

the color management model for CRT monitor is deduced gradually though single color

double color

and tricolor conversion correction based on corrected contraction-expansion fitting and color rendering principle of CRT monitor. Experimental results show that the model can improve color management accuracy of CRT monitor above 54% and can be practically used in its color management. With the help of the color rendering principle of other color devices

the model has superior reference value for color management.