The present invention provides A color cathode ray tube comprising: a panel having a flat outer surface and an inner surface that has a predetermined curvature; and a shadow mask, wherein

##EQU1##

where B1 is a length of a bridge as a distance between holes in a vertical direction at a center portion of the shadow mask; B2 is a length of a bridge as a distance between holes in a vertical direction at four corner portions of the shadow mask; B3 is a length of a bridge as a distance between holes at edge portions of the shadow mask in a direction of a long axis thereof; P1 is a vertical pitch of the holes at the center portion of the shadow mask; P2 is a vertical pitch of the holes at the four corner portions of the shadow mask; and P3 is a vertical pitch of the holes at the edge portions of the shadow mask in a direction of a long axis thereof.