An organic light-emitting device, comprising: a pair of electrodes; and an organic compound layer disposed between the pair of electrodes, wherein the organic compound layer includes an iridium complex represented by the following general formula and a hydrocarbon compound represented by the following general formula: in the formula: R 31 to R 38 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, a cyano group, a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted heteroaromatic group; k represents an integer of 1 to 3 and l represents an integer of 0 to 2, provided that k+l equals 3; a ring A represents a cyclic structure selected from a benzene ring, a naphthalene ring, a fluorene ring, a phenanthrene ring, a 9,9-spirobifluorene ring, and a chrysene ring, and is covalently bonded to a benzo[f]isoquinoline skeleton and an Ir metal, and the ring A may further have a substituent; X represents a bidentate ligand; and a partial structure IrX l comprises any one of structures represented by the following general formulae to: in the formulae to, R 39 to R 53 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, a cyano group, a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted heteroaromatic group; Ar 5 -(Ar e) r -(Ar 7) s -Ar 8 in the formula: r and s each represent 0 or 1, and r+s is equal to or more than 1; Ar 5 represents any one of substituents represented in the following substituent group α'; Ar 6 and Ar 7 each represent any one of substituents represented in the following substituent group β', and Ar 6 and Ar 7 may be identical to or different from each other; and Ar 8 represents any one of substituents represented in the following substituent group γ'. a pair of electrodes; and an organic compound layer disposed between the pair of electrodes, wherein the organic compound layer includes an iridium complex represented by the following general formula and a hydrocarbon compound represented by the following general formula: in the formula: R 31 to R 38 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, a cyano group, a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted heteroaromatic group; k represents an integer of 1 to 3 and l represents an integer of 0 to 2, provided that k+l equals 3; a ring A represents a cyclic structure selected from a benzene ring, a naphthalene ring, a fluorene ring, a phenanthrene ring, a 9,9-spirobifluorene ring, and a chrysene ring, and is covalently bonded to a benzo[f]isoquinoline skeleton and an Ir metal, and the ring A may further have a substituent; X represents a bidentate ligand; and a partial structure IrX l comprises any one of structures represented by the following general formulae to: in the formulae to, R 39 to R 53 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, a cyano group, a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted heteroaromatic group; Ar 5 -(Ar e) r -(Ar 7) s -Ar 8 in the formula: r and s each represent 0 or 1, and r+s is equal to or more than 1; Ar 5 represents any one of substituents represented in the following substituent group α'; Ar 6 and Ar 7 each represent any one of substituents represented in the following substituent group β', and Ar 6 and Ar 7 may be identical to or different from each other; and Ar 8 represents any one of substituents represented in the following substituent group γ'. R 31 to R 38 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, a cyano group, a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted heteroaromatic group; k represents an integer of 1 to 3 and l represents an integer of 0 to 2, provided that k+l equals 3; a ring A represents a cyclic structure selected from a benzene ring, a naphthalene ring, a fluorene ring, a phenanthrene ring, a 9,9-spirobifluorene ring, and a chrysene ring, and is covalently bonded to a benzo[f]isoquinoline skeleton and an Ir metal, and the ring A may further have a substituent; X represents a bidentate ligand; and a partial structure IrX l comprises any one of structures represented by the following general formulae to: in the formulae to, R 39 to R 53 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, a cyano group, a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted heteroaromatic group; Ar 5 -(Ar e) r -(Ar 7) s -Ar 8 in the formula: r and s each represent 0 or 1, and r+s is equal to or more than 1; Ar 5 represents any one of substituents represented in the following substituent group α'; Ar 6 and Ar 7 each represent any one of substituents represented in the following substituent group β', and Ar 6 and Ar 7 may be identical to or different from each other; and Ar 8 represents any one of substituents represented in the following substituent group γ'. r and s each represent 0 or 1, and r+s is equal to or more than 1; Ar 5 represents any one of substituents represented in the following substituent group α'; Ar 6 and Ar 7 each represent any one of substituents represented in the following substituent group β', and Ar 6 and Ar 7 may be identical to or different from each other; and Ar 8 represents any one of substituents represented in the following substituent group γ'.