A novel conducting polymer was successfully synthesized via electropolymerization of N-1, N-4-bis(4-(1H-pyrrol-1-yl)phenyl)-N-1,N-4-diphenylbenzene-1.4-diamine (DPTPA). This polymer film exhibited six various colors under different potentials. Besides, this polymer film showed high optical contrast (41% at 852 nm,52% at 617 nm)and fast switching time (1.3 s at 410 nm, 1.4s at 852 nm and 0.6s at 617 nm). Cyclic voltammogram and electro-optical study showed that the polymer film has a stable and well-defined reversible redox process as well as electrochromic behavior. (C) 2011 Elsevier Ltd. All rights reserved.