A resin composition includes at least one selected from compounds represented by formula (I-1) and at least one selected from compounds represented by formula (I-2) and compounds represented by formula (I-3): wherein R11 to R14, R21 to R24, and R31 to R34 independently represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group, R15, R16, R25, R26, R35, and R36 independently represent a hydrogen atom or an alkyl group, X and Y independently represent an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom, with the proviso that plural X's each represent the same element, plural Y's each represent the same element, which is an element different from the element selected as X, A1 to A3 independently represent a divalent group represented by formula (a1) or (a2), which is bonded at the * positions.