In the title compound, C(20)H(27)N(3)O, the hy-droxy group forms an intra-molecular O-H⋯N hydrogen bond with the imino N atom. The dihedral angle between the aromatic rings is 33.09 (9)°. In the crystal, mol-ecules form centrosymmetric dimers via pairs of N-H⋯N hydrogen bonds involving amino-pyridine fragments.