Silver halide photographic light-sensitive material

A silver halide photographic light-sensitive material, comprising a support and provided thereon at least one light-sensitive silver halide emulsion layer and at least one hydrophilic colloidal layer comprising a solid particle dispersion of a water-insoluble photographically useful compound, said solid particle dispersion being a dispersion comprising both a water-insoluble photographically useful compound represented by formula 1 and a polymer represented by formula 2:

• wherein, in formula 1, A represents an acidic nucleus;
• L1, L2 and L3 each represent a methine group which may be substituted;
• R1 and R3 each represent a hydrogen atom or a substituent (including an atom), R2 represents a substituent (including an atom), n represents 0 or 1, m represents an integer of 0 to 4, and when m is an integer of 2 to 4, R2'S may be the same or different;
• and X represents an electron-withdrawing group having Hammett's substitution constant σm of 0.3 to 1.5:
• wherein, in formula 2, R4's each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R5 represents a substituted or unsubstituted alkyl group having 2 to 18 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 12 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, L4 represents a divalent linking group, x represents 0 or 1, M represents a monovalent cationic group, p represents 2 to 90% by weight, q represents 5 to 80% by weight, and r represents 0 to 60% by weight, with the proviso that p+q+r=100 (wt %).