In an imaging color toner employing a photofixing system, a binder resin, which contains, as a principal component, a polyester resin obtained by mixing a first polyester resin having a softening point Tsp of not lower than 120.degree. C. and lower than 170.degree. C. with a second polyester resin having a softening point Tsp of not lower than 80.degree. C. and lower than 110.degree. C. in a weight ratio of 80:20 to 20:80, is used. The color toner is used in an electrophotographic process and other imaging processes.