The present disclosure provides an electroluminescent device including a light-emitting layer containing a blue or a blue-green fluorescent light emitting material that contains a dialkyl-gallium moiety coordinated to a bidentate nitrogen bonding chelating ligand to form a gallium containing 6-membered heteroatom ring. The invention also provides a display or area lighting device including the OLED device, a process for emitting light, and a dialkyl-gallium chelate complex. The device provides unexpected and useful light emissions in the blue and green regions of the visible spectrum.