This article clarified the quantitative relationship between the three attributes of urban building colors and the comfort of visual recognition under the haze weather to clarify the comfortably recognition threshold values of three color-appearance attributes of urban building in the hazy weather. The quantitative index could be provided to designers to choose architectural colors that effectively identify building color in both normal and abnormal weather conditions, while offering referential research methods for urban environmental color planning and evaluation in the abnormal weather. Firstly, the research experiments are based on the practical and fixed-point measurement of the three color-appearance attributes of building colors in Harbin, one of the most heavily polluted cities. The types of selected buildings are commercial and residential buildings, which make up the largest proportion of buildings in Harbin, and the research scope of haze index will be determined through experiment. Secondly, 126 color samples in total that selected by orthogonal method were evaluated on 30 subjects based on Likert scale in the laboratory. Finally, by using R language Statistics analysis, the distribution region and the changing threshold value of color attributes including hue, chroma and value could be related to the visual comfortable level of subjects. The results indicated that the values of the three color-appearance attributes of buildings could all directly affect the visual comfort level. Among those three attributes, value has the greatest influence, followed by chroma, and finally hue. Further the warm colors were more comfortable than cool color in the haze weather.