a method of producing a toner for developing latent electrostatic images is disclosed , which comprises the steps of dispersing resin particles comprising a resin in an organic solvent in which the resin is not dissolved ; dissolving a dye in the organic solvent before or after dispersing the resin particles in the organic solvent to prepare a dispersion in which the resin particles and the dye are contained , thereby dying the resin particles with the dye ; and removing the organic solvent from the dispersion , wherein the ratio of the solubility of the dye in the organic solvent to the solubility of the dye in the resin of the resin particles , /, is not more than 0 . 5 .