Diazo photographic materials containing 2-hydroxy 3-naphthanilide coupler

A diazo photographic material having a support with a stabilized photosensitive emulsion layer thereon which provides blue images containing, together with a photosensitive diazonium compound, at least one compound which forms a blue dye upon reaction with said photosensitive diazonium compound, which compound is represented by the general formula ##STR14## wherein R.sub.1 represents (1) ##STR15## wherein R.sub.2 and R.sub.3 each represents a hydrogen atom, a halogen atom, or an alkyl group having 1-4 carbon atoms;

• or (2) --COR.sub.4 wherein R.sub.4 represents an alkyl group or a substituted phenyl group or unsubstituted phenyl group wherein said substituted phenyl group is substituted with one or more members from the group consisting of hydroxy, halogen, nitro, alkyl having 1-4 carbon atoms, aryl or aralkyl where the alkyl moiety has 1-4 carbon atoms.