To provide: an inkjet ink suitable for the application of inkjet, which satisfies the need for high contrast of a color filter; the color filter of high contrast, obtained by using the inkjet ink; a method of producing the color filter; and a liquid crystal display device and an organic light-emitting display device using the color filter.

The inkjet ink for color filter comprises: a diketopyrrolopyrrole-based pigment; a sulfonated derivative of the diketopyrrolopyrrole-based pigment; a pigment dispersant; an epoxy compound that has at least two epoxy groups in one molecule; a curing agent; and a solvent.