At present the capacity for computer aided color design both at home and abroad is relatively weak. The paper studies one aspect of it, that is, the objective assessment of computer aided color design. It takes color matching schemes of cockpit information display as an example to carry out the experiment of assessment.The experiment mainly deals with the assessment of the color matching schemes of the primary flight display. Four-dimensional assessment indicators are used to evaluate the quickness of information recognition for pilots, through which the order of excellence of the color matching schemes is achieved. Based on the findings of the experiment, the article proposes the generalized model framework for the assessment of CACD. The framework has four parts. Color design of human-computer interface of the prototype product; the application of computer software to the design of color schemes; Computer aided assessment on color design, including experiment design, the application of computer programming to carrying out the simulated experiment which is based on the prototype and the application of computer software to statistical analaysis of the data collected; Objective assessment on the color design schemes. This framework can give an objective description of the color design, which can be applied to various products. However, different products should design different experiments. This framework provides new references for the study in the field of the CACD.