To provide a pigment composition free from lowering of the contrast ratio even when a color filter formation process is carries out at high temperature; and to provide a method for producing the same.

This method for producing the pigment composition comprises mechanically kneading a dispersant expressed by formula, an organic pigment and a water-soluble inorganic salt together with a water-soluble organic solvent substantially not dissolving the water-soluble inorganic salt, where in formula, n is an integer of 1-5; R1 represents hydrogen or an alkyl group which may have a substituent; R2 to R4 each independently represent an alkyl group which may have a substituent.