The present invention relates to an aqueous cleansing composition comprising at least three anionic surfactants and a non-ionic surfactant providing exceptionally good colour stability for artificially coloured human hair. The object of the present invention is an aqueous cleansing composition comprising three anionic surfactants and a non-ionic surfactant wherein it is substantially free of amphoteric surfactants and the total surfactant concentration is in the range of 4 to 50% by weight calculated to the total of the composition. Further object of the present invention is a process for treating hair wherein hair is artificially coloured with a composition comprising at least one hair dye and rinsed off and optionally washed with a cleansing composition and rinsed off and optionally dried or left to dry and hair is washed with the cleansing composition of the present invention and dried or left to dry.