In a color photographic material positive color images are produced by the dye diffusion transfer process. The reversal is brought about by the silver salt diffusion process. The lightsensitive element contains up to three separate color units each unit comprising a light-sensitive silver halide emulsion layer and an associated nuclear layer containing development nuclei and a non-diffusible dye-giving compound capable of releasing a diffusible dye after on oxidative condensation with developer compound. The light-sensitive silver halide emulsion contains a non-diffusible silver halide developer. The nuclear layer contains a non-diffusible developer compound capable of being oxidatively condensed with the dye-giving compound to release the diffusible dye. Development is carried out in the presence of catalytic amounts of a diffusible auxiliary developer. The imagewise distribution of liberated diffusible dye is transferred to an image receptor layer.