Credits. Author expresses gratitude to S. G. Romanov and I. A. Mikhailova for preparing the software and collecting the empiric material. The article presents the results of a study of categorical color perception in children with different cognitive styles. Diagnostic was carried out according to two styles: field dependence/ field independence and impulsiveness/reflectivity. The sample consisted of 59 children of primary school age 8–11 years old. The study of categorical effects of color perception was carried out in a computer version of the visual search task in the yellow-green and blue color ranges. The results showed that there was a strong relationship between the two cognitive styles. In all cases, there were categorical effects: the speed of within-category color discrimination was higher than the between-category one. In impulsive and field-dependent children, there was a tendency to faster, but less accurate execution compared to reflective and field-independent children. Differences in categorical effects were clearly manifested in children with different cognitive styles: the difference in the time for performing within- and between-category tasks was greater in reflective and field-independent children.