Silver halide photographic light sensitive material

A silver halide photographic light sensitive material comprising a support having thereon photographic component layers including a silver halide emulsion layer and a light insensitive hydrophilic colloidal layer, wherein at least one of the component layers contains a leuco dye represented by the following formula (1):

• ##STR14## wherein W is --NR.sub.1 R.sub.2, --OH or --OZ, in which R.sub.1 and R.sub.2 each are an alkyl group or an aryl group and Z is an alkali metal ion or a quaternary ammonium ion;
• R.sub.3 is a hydrogen atom, a halogen atom or a univalent substituent;
• n is an integer of 1 to 3;
• Z.sub.1 and Z.sub.2 each are a nitrogen atom or .dbd.C(R.sub.3)--;
• X is an atomic group necessary for forming a 5- or 6-membered aromatic heterocyclic ring;
• R.sub.4 is a hydrogen atom, an acyl group, a sulfonyl group, carbamoyl group, sulfo group, sulfamoyl group, an alkoxycarbonyl group or aryloxycarbonyl group;
• R is an aliphatic group or an aromatic group;
• p is an integer of 0 to 2;
• CP1 is a group represented by the following formulas:
• ##STR15## wherein R.sub.5 through R.sub.8 independently are a hydrogen atom, a halogen atom or a substituent, provided that R.sub.5 and R.sub.6, or R.sub.7 and R.sub.8 may form together with each other to form a 5 to 7-membered ring;
• R.sub.9 has the same definition as R.sub.4 ;
• R.sub.10 and R.sub.11 independently are an alkyl group, an aryl group or a heterocyclic group;
• R.sub.12 has the same definition as R.sub.4 ;
• R.sub.13 and R.sub.14 each have the same definition of R.sub.10 and R.sub.11 ;
• R.sub.15 has the same definition as R.sub.12 ;
• R.sub.16 is an alkyl group, an aryl group, a sulfonyl group, a trifluoromethyl group, a carboxy group, an aryloxycarbonyl group, an alkoxycarbonyl group, a carbamoyl group or a cyano group;
• R.sub.17 has the same definition as R.sub.4 ;
• R.sub.18 has the same definition as R.sub.3 ;
• m is an integer of 1 to 3;
• Y1 is an atomic group necessary for forming 5- or 6-membered nitrogen containing ring;
• R.sub.19 and R.sub.20 independently are an alkyl group or an aryl group;
• R.sub.21 has the same definition as R.sub.4 ;
• R.sub.22 and R.sub.23 each have the same definition as R.sub.19 and R.sub.20 ;
• R.sub.24 has the same definition as R.sub.21 ;
• R.sub.25, R.sub.27 and R.sub.28 independently are a hydrogen atom or a substituent;
• R.sub.26 has the same definition as R.sub.4 ;
• R.sub.29, R.sub.31 and R.sub.32 each have the same definition as R.sub.25, R.sub.27 and R.sub.28 ;
• R.sub.30 has the same definition as R.sub.26 ;
• R.sub.34, R.sub.35 and R.sub.36 each have the same definition as R.sub.25, R.sub.27 and R.sub.28 ;
• R.sub.33 has the same definition as R.sub.26 ;
• R.sub.38, R.sub.39 and R.sub.40 each have the same definition as R.sub.25, R.sub.27 and R.sub.28 ;
• R.sub.37 has the same definition as R.sub.26 ;
• R.sub.41, R.sub.42 and R.sub.43 each have the same definition as R.sub.25, P.sub.27 and R.sub.28 ;
• R.sub.44 has the same definition as R.sub.26 ;
• and the symbol, ".star-solid." represents a bonding site of CP1 with the other moiety.