The present disclosure relates to a composition for dyeing keratin fibers, comprising, in a suitable medium, at least one first oxidation base chosen from 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and the addition salts thereof; at least one second oxidation base chosen from 4,5-diamino-1-(β-hydroxyethyl)pyrazole and the addition salts thereof; and at least one coupler chosen from 2-chloro-6-methyl-3-aminophenol and the addition salts thereof. The present disclosure also relates to a process for dyeing keratin fibers using the composition of the present disclosure, the use of this composition for dyeing keratin fibers, and also a method for making the composition of the present disclosure.