We report a novel, monomeric, lyotropic, cholesteric liquid crystal revealing selective reflection in the visible light region and having photochromic properties in the lyotropic liquid crystal phase. Monomer (+)-cholesteryl (6-acryloyloxyhexyloxy)-4-cinnamate was synthesized. Liquid crystal phases of M1 were identified using polarized optical microscopic and X-ray diffraction methods. Reflection light spectra were analyzed using an optical fiber system.