The present disclosure provides an ultraviolet light-C (UVC) reflective coating composition. The UVC reflective coating includes a polymer binder of a first volume having a first refractive index and an inorganic material of a second volume having a second refractive index at least 0.2 greater than the first refractive index, the second volume in ratio to the first volume such that the reflective coating is at or below critical pigment volume concentration (CVPC) (CPVC), wherein the reflective coating is configured to diffusely reflect at least 10% UVC.