A magenta toner for developing electrostatic images provided which
contains a binder resin and a colorant, wherein the colorant includes a
mixed crystal of two or more colorants and when a solid patch is fixed on
art paper complying with the ISO standard by using this toner, a
resulting fixed image color satisfies at least one of the following
formulae (b*)<0.85 (a*)-67.92; and (b*)>-7.94(a*)+591.85. The color
difference .DELTA.E between the color of the fixed image and the color
characterized by L*: 46.6, a*: 75.1 and b*: -4.4 is preferably less than
6. The colorant is preferably a mixed crystal of a quinacridone colorant
and a monoazo colorant. Moreover, the invention provides a method for
producing the magenta toner, a developer containing the magenta toner,
and an image-forming method using the magenta toner.