Light-sensitive silver halide photographic material containing tetrazolium compounds

A light-sensitive silver halide photographic material which consists essentially of a support, at least one hydrophilic colloidal layer coated thereon containing silver halide grains having an average grain size of from 0.05 to 1.5 .mu.and at least 75% of which grains being within a range of from 0.6 to 1.4 times said average grain size, and a tetrazolium compound selected from the group consisting of a compound of formulae [I], [II] or [III]:

• ##STR2## wherein R.sub.1, R.sub.3, R.sub.4, R.sub.5, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 each represent an aryl group or a heterocyclic group;
• R.sub.2, R.sub.6 and R.sub.7 each represents an aryl group, a heterocyclic group, an alkyl group, hydroxyl, carboxyl or the salt thereof, an amino group, mercapto, nitro or hydrogen;
• D represents a divalent aromatic group;
• E represents an alkylene group, an arylene group or an aralkylene group;
• X is an anion;
• said heterocyclic group being selected from the group consisting of a thiadiazolyl group, a benzothiadiazolyl group, an oxazolyl group, a pyrimidinyl group, a pyridyl group and a 2,5-dimethylthiazolyl group;
• and n is 1 or 2, provided that the compound forms an intramolecular salt when n is 1.