A kit comprising a dye component and an oxidative component, for obtaining a hair coloring composition upon the mixing of the dye component and the oxidative component in a weight ratio from 3:1 to 1:3; wherein the dye component has a pH from 8.5 to 10, and wherein it comprises, by total weight of the dye component: - at least one alkalizing agent present in an amount from 0.2 to 4 %; - at least one chelant present in an amount from 1.2 to 1.8 %; - at least one buffering acidic compound present in an amount from 0.01 to 0.6 %; wherein the buffering acidic compound is citric acid; - at least one anionic surfactant present in an amount from 0.2 to 1 %; - at least one fatty alcohol present in an amount from 1.6 to 2.5 %; - at least one non-ionic surfactant present in an amount from 0.1 to 0.5 %; - if present, at least one oxidative hair dye precursor and at least one coupler present altogether in an amount of 20 % or less; and - at least one solvent present in an amount from at least 50 %; wherein the oxidative component has a pH from 1.8 to 3.5, and wherein it comprises, by total weight of the oxidative component: - at least one oxidizing agent present in an amount from 1 to 3 %; - at least one buffering acidic compound present in an amount from 0.15 to 0.5 %; wherein the buffering acidic compound is phosphoric acid; - at least one buffering alkali compound present in an amount from 0.2 to 0.6 %; wherein the buffering alkali compound is disodium phosphate; and - at least one solvent present in an amount from at least 50%. wherein the dye component has a pH from 8.5 to 10, and wherein it comprises, by total weight of the dye component: - at least one alkalizing agent present in an amount from 0.2 to 4 %; - at least one chelant present in an amount from 1.2 to 1.8 %; - at least one buffering acidic compound present in an amount from 0.01 to 0.6 %; wherein the buffering acidic compound is citric acid; - at least one anionic surfactant present in an amount from 0.2 to 1 %; - at least one fatty alcohol present in an amount from 1.6 to 2.5 %; - at least one non-ionic surfactant present in an amount from 0.1 to 0.5 %; - if present, at least one oxidative hair dye precursor and at least one coupler present altogether in an amount of 20 % or less; and - at least one solvent present in an amount from at least 50 %; - at least one alkalizing agent present in an amount from 0.2 to 4 %; - at least one chelant present in an amount from 1.2 to 1.8 %; - at least one buffering acidic compound present in an amount from 0.01 to 0.6 %; wherein the buffering acidic compound is citric acid; - at least one anionic surfactant present in an amount from 0.2 to 1 %; - at least one fatty alcohol present in an amount from 1.6 to 2.5 %; - at least one non-ionic surfactant present in an amount from 0.1 to 0.5 %; - if present, at least one oxidative hair dye precursor and at least one coupler present altogether in an amount of 20 % or less; and - at least one solvent present in an amount from at least 50 %; wherein the oxidative component has a pH from 1.8 to 3.5, and wherein it comprises, by total weight of the oxidative component: - at least one oxidizing agent present in an amount from 1 to 3 %; - at least one buffering acidic compound present in an amount from 0.15 to 0.5 %; wherein the buffering acidic compound is phosphoric acid; - at least one buffering alkali compound present in an amount from 0.2 to 0.6 %; wherein the buffering alkali compound is disodium phosphate; and - at least one solvent present in an amount from at least 50%. - at least one oxidizing agent present in an amount from 1 to 3 %; - at least one buffering acidic compound present in an amount from 0.15 to 0.5 %; wherein the buffering acidic compound is phosphoric acid; - at least one buffering alkali compound present in an amount from 0.2 to 0.6 %; wherein the buffering alkali compound is disodium phosphate; and - at least one solvent present in an amount from at least 50%.