A light-resistant recording layer of an optical information recording medium composed of a cyanine dye compound having the formula (I): [DYE+]nXn-(I) in which DYE+ is a monovalent cyanine dye cation, n is an integer of 2 or more, and Xn+ is an n-valent anion, and a compound having the following formula (A1) or (A2): in which each of R11 and R12 is a hydrocarbon group.
Optical information recording medium