1. In a photographic element comprising a support having thereon, in reactive association, in binder, (a) photosensitive silver halide; and (b) a color-forming dye precursor which is imagewise converted upon exposure and processing of said element to a dye by cross-oxidation by means of a cross-oxidizing silver halide developing agent; the improvement comprising as said dye precursor, a color-forming parasulfonamidodiphenylamine which is free of sulfonamido groups in an ortho position relative to the amino --NH-- separating the two aryl rings and which forms a sulfonimide dye.