In the title compound, C27H17ClO, the xanthene fused-ring system adopts a shallow butterfly conformation [dihedral angle between the two halves of the ring system = 22.9 (1)°. The dihedral angle between the central heteroyclic ring and the pendant chlorophenyl group is 87.60 (8)°. In the crystal, molecules are linked by weak C—H...π interactions.