A series of solution-processible arylfluorenes (AFs)/carbazole hybrid compounds (SmeFCz, DMeFCz, SMeOFCz, DMeOFCz, SFFCz and DFFCz) have been designed and synthesized via simple one-step reaction. These compounds exhibit good thermal stability, excellent solubility and high triplet energy levels, which can be used as universal hosts for solution-processed phosphorescent organic light-emitting devices (PhOLEDs). Employing the developed materials, highly efficient blue (DMeFCz: CEmax: 20.0 cd/A, EQEmax: 10.0 %), green (DMeFCz: CEmax: 26.0 cd/A, EQEmax: 7.8 %) and red (SMeFCz: CEmax: 13.7 cd/A, EQEmax: 8.2 %) PhOLEDs fabricated by spin-coating in different device configurations have been demonstrated. Furthermore, complementary-color, single-emitting layer white phosphorescent device were also obtained. The SMeOFCz-based white device exhibited highly efficient white-light emission with a maximum efficiency of 27.1cd/A (EQE of 12.0 %). The state-of-art performance indicates that AFs/carbazole hybrid hosts have a favorable prospect of applications in solution-processed full-color displays and white PhOLEDS.