A platinum complex is represented by General Formula (1) below. In Formula (1), Pt represents a tetravalent platinum atom. The ring structure A represents a cyclic substituent having a carbon atom that forms a covalent bond with Pt. The ring structure B represents a cyclic substituent having Q that forms a coordination bond with Pt, where Q is a carbon atom, a nitrogen atom, or a phosphorous atom. X1 represents a monovalent-bidentate ligand, and X2 represents a divalent-bidentate ligand.