 embodiment of the present invention, there is provided a color cathode ray tube including a vacuum envelope comprising a panel portion, a neck portion, and a funnel portion connecting the panel portion and the neck portion; a phosphor screen on an inner surface of the panel portion; a shadow mask suspended closely spaced from the phosphor screen in the panel portion; an electron gun comprising a plurality of electrodes for generating and focusing three in-line electron beams and housed within the neck portion; a deflection device mounted around a transition area between the funnel portion and the neck portion for deflecting the three in-line electron beams in horizontal and vertical directions; and a convergence correction device comprising a plurality of magnetic pieces positioned on opposite sides of each of the three in-line electron beams in an in-line direction of the three in