Electrochromic mirrors (ECMs) that are used in automobile mirrors need to have high reflectance, a high contrast ratio, and a clear image. In particular, it is critical that distortions of clear images are minimized for safety. Therefore, an ECM is fabricated using viologen-anchored nanoparticles and a magnesium fluoride (MgF2) layer with an anti-reflection function. The ECM has approximately 30.42% in the reflectance dynamic range and 125 cm(2)/C high coloration efficiency. (C) 2016 Elsevier Ltd. All rights reserved.