The Ce1−xZrxBiyO2−y/2 and the Ce1−xZrxLayO2−y/2 pigments were prepared by a cation complexation method using citric acid. A stoichiometric mixture of 1 mol L−1 Ce(NO3)3, 1 mol L−1 ZrO(NO3)2, and 0.5 mol L−1 Bi(NO3)3 aqueous solutions was mixed with a 1 mol L−1 citric acid solution. After stirring at 353K for 5 h, the solvent was evaporated at 353K with a rotary evaporator. The solid obtained was dried at 403 K, heated at 573K for 1 h, and successively calcined at 1273K for 1 h.