Color photographic light-sensitive material

A method of forming a color image comprising developing an imagewise exposed silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material having at least one layer containing at least one kind of 5-pyrazolone type 2-equivalent magenta coupler represented by the following general formula (Ia):

• ##STR20## wherein W represents a phenyl group substituted with at least one halogen atom, an alkyl group having 1 to 22 carbon atoms, an alkoxy group having 1 to 22 carbon atoms, an alkoxycarbonyl group having 2 to 22 carbon atoms or a cyano group;
• Y represents an acylamino group having 1 to 32 carbon atoms or an anilino group having 6 to 44 carbon atoms;
• and Z represents an aryloxy group having 6 to 32 carbon atoms, an alkoxy group having 1 to 32 carbon atoms, a heterocyclic oxy group, an alkylthio group having 1 to 32 carbon atoms, an arylthio group having 6 to 32 carbon atoms, a heterocyclic thio group, an acylthio group having 1 to 32 carbon atoms, an acylamino group having 1 to 32 carbon atoms, a sulfonamido group having 1 to 32 carbon atoms, an alkoxycarbonylamino group having 2 to 32 carbon atoms, an aryloxycarbonylamino group having 7 to 32 carbon atoms or a nitrogen containing heterocyclic group which is bonded to the active position of the pyrazolone ring through the nitrogen atom, and at least one compound for preventing stain represented by the following general formula (II):
• ##STR21## wherein R.sub.1 has up to 32 carbon atoms and represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted cycloalkyl group or a substituted or unsubstituted alkenyl group;
• R.sub.2 represents a hydrogen atom or a substituent same as defined for R.sub.1 ;
• Ar has up to 60 carbon atoms and represents an unsubstituted phenyl group, or a substituted phenyl group or a substituted naphthyl group substituted with at least one member selected from the group consisting of a halogen atom, a carboxy group, a substituted or unsubstituted alkyl group having 1 to 32 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 32 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 32 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 32 carbon atoms, a substituted or unsubstituted cycloalkyl group having 5 to 32 carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 32 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted aryloxy group having 6 to 32 carbon atoms, a substituted or unsubstituted acylamino group having 1 to 32 carbon atoms, a substituted or unsubstituted carbamoyl group having 1 to 32 carbon atoms, a substituted or unsubstituted sulfonamido group having 1 to 32 carbon atoms and a substituted or unsubstituted sulfamoyl group having 1 to 32 carbon atoms, and when two or more substituents are present on the phenyl group or the naphthyl group, these may be the same or different;
• and R.sub.1 and R.sub.2 may be bonded to each other to form a ring or each of R.sub.1 and R.sub.2 may be bonded to the ring represented by Ar to form a ring with an aqueous alkaline solution containing a color developing agent.