A color photographic material with at least one silver halide emulsion layer which contains a color coupler distributed in a polymeric oil former and at least one compound of the formula (I) ##STR1## in which R means alkyl, cycloalkyl, alkenyl, aryl, acyl, alkylsulphonyl or arylsulphonyl,R.sub.1 means a chemical bond or a divalent bridging member,R.sub.2 and R.sub.3 mean alkyl, alkoxy, alkenyl, cycloalkyl, aryl or aryloxy or two residues R.sub.2 or R.sub.3 the remaining atoms of a benzene ring condensed with the phenyl residue andm and n mean 0 to 3, wherein all alkyl, alkoxy, cycloalkyl, alkenyl, aryl, aryloxy and acyl residues may be further substituted,is characterized by improved color stability.