The invention relates to a color processing apparatus, a color processing method, and an image forming system. The color processing apparatus includes an area group manager, a predictor, and a conversion relationship generator. The area group manager extracts, as an area group, a particular area on each page from image data in which one copy is constituted of multiple pages, and manages the area group in association with a page number. The predictor obtains color data of the image data output by an image forming section, and predicts a color variation on the basis of color data corresponding to the area group. The conversion relationship generator generates, on the basis of the color variation of the area group corresponding to a particular page number, a conversion relationship unique to the particular page number as a conversion relationship for performing color adjustment of the image forming section.