Silver halide photographic light sensitive material and image forming method using thereof

A silver halide photographic light-sensitive material having an emulsion layer containing a yellow dye forming coupler, an emulsion layer containing a magenta dye forming coupler and an emulsion layer containing a cyan, dye forming coupler provided on a support, wherein the magenta dye forming coupler is represented by formula (M-1) or (M-1′), and the yellow dye forming coupler is represented by formula (Y-1),

• wherein RM1 represents a hydrogen atom or a substituent, RM2 and RM3 represent an alkyl group, and RM4 and RM5 represent a hydrogen atom or alkyl group, JM represents —O—C(═O)—, —NRM7CO— or —NRM7SO2—, and RM7 represents a hydrogen atom or alkyl group, RM6 represents an alkyl, aryl, alkoxy, aryloxy, alkylamino or arylamino group, XM represents a hydrogen atom, halogen atom or a group capable of splitting off by reaction with oxidation product of color developing agent,
• wherein RY1 represents an aliphatic group or an aromatic group, RY2 represents a non-diffusible aliphatic or aromatic group, RY3 represents a hydrogen or a halogen atom and XY represents a 5- or 6-member nitrogen containing heterocyclic group splitting off when coupled with an oxidation product of a developing agent.