The present invention relates to ready-to-use gel compositions for coloring hair in the form of an aqueous solution comprising:at least one Acrylates/Methacrylamide Copolymerat least one cellulose derivativeat least one cross-linked polymer of acrylic acid or methacrylic acid or salts thereofat least one oxidation dye and optionally at least one direct dyeat least one alkalizing agenthydrogen peroxide or an hydrogen peroxide adduct.
