As a reaction sequence, the color-forming process in color photographic chemistry has been studied in the system of AOT (bis-(2-ethylhexyl)sulphosuccinate sodium) reversed micelles. At the beginning of the reaction, a color developer was oxidized into quinonediimine, the oxidation product for the color developer, by the AgCl particle in the water phase of AOT reversed micelles. A subsequent color coupling reaction of quinonediimine with a photographic color coupler proceeded at the interface of the surfactant and hydrophobic outer phase of the reversed micellar system. The color dye thus formed distributed itself into the continuous hydrophobic outer phase of the reversed micellar system. The experiments showed that the complicated sequential reaction in color photographic chemistry could be controlled by adjusting surfactant concentration, the molar ratio of [H₂O]/ [surfactant], and a reagent concentration in the water phase of the system.