An organic electroluminescence device comprising: an anode; a cathode; and a first light-emission layer disposed between the anode and the cathode and configured for emitting blue light, wherein the first light-emission layer comprises a host composition and a blue dopant, wherein the blue dopant comprises at least one compound represented by Chemical Formula D, and the host composition comprises a first host compound and a second host compound, wherein the first host compound has a triplet energy level higher than a triplet energy level of the blue dopant, and the second host compound has a triplet energy level lower than the triplet energy level of the blue dopant: wherein each of R a , R b , R c , R d and R e independently represents one selected from a group consisting of a substituted or unsubstituted C 1 to C 12 monovalent aliphatic chain hydrocarbon group, a substituted or unsubstituted C 3 to C 20 monovalent aliphatic cyclic hydrocarbon group, a substituted or unsubstituted C 6 to C 60 monovalent aromatic hydrocarbon group, a substituted or unsubstituted C 3 to C 60 monovalent heteroaromatic hydrocarbon group, and a substituted or unsubstituted C 6 to C 24 arylamino. an anode; a cathode; and a first light-emission layer disposed between the anode and the cathode and configured for emitting blue light, wherein the first light-emission layer comprises a host composition and a blue dopant, wherein the blue dopant comprises at least one compound represented by Chemical Formula D, and the host composition comprises a first host compound and a second host compound, wherein the first host compound has a triplet energy level higher than a triplet energy level of the blue dopant, and the second host compound has a triplet energy level lower than the triplet energy level of the blue dopant: wherein each of R a , R b , R c , R d and R e independently represents one selected from a group consisting of a substituted or unsubstituted C 1 to C 12 monovalent aliphatic chain hydrocarbon group, a substituted or unsubstituted C 3 to C 20 monovalent aliphatic cyclic hydrocarbon group, a substituted or unsubstituted C 6 to C 60 monovalent aromatic hydrocarbon group, a substituted or unsubstituted C 3 to C 60 monovalent heteroaromatic hydrocarbon group, and a substituted or unsubstituted C 6 to C 24 arylamino. wherein the first light-emission layer comprises a host composition and a blue dopant, wherein the blue dopant comprises at least one compound represented by Chemical Formula D, and the host composition comprises a first host compound and a second host compound, wherein the first host compound has a triplet energy level higher than a triplet energy level of the blue dopant, and the second host compound has a triplet energy level lower than the triplet energy level of the blue dopant: wherein each of R a , R b , R c , R d and R e independently represents one selected from a group consisting of a substituted or unsubstituted C 1 to C 12 monovalent aliphatic chain hydrocarbon group, a substituted or unsubstituted C 3 to C 20 monovalent aliphatic cyclic hydrocarbon group, a substituted or unsubstituted C 6 to C 60 monovalent aromatic hydrocarbon group, a substituted or unsubstituted C 3 to C 60 monovalent heteroaromatic hydrocarbon group, and a substituted or unsubstituted C 6 to C 24 arylamino. <EOS>