Among the methods for dyeing human keratin fibers, such as the hair, mention may be made of oxidation dyeing or permanent dyeing. More particularly, this dyeing method uses one or more oxidation dyes, usually one or more oxidation bases optionally combined with one or more couplers. In general, oxidation bases are chosen from ortho- or para-phenylenediamines, ortho- or para-aminophenols and hetero