A novel ink composition, which has an absorption characteristic excellent
in color reproducibility as a yellow color of one of the three primary
colors, which has enough fastness against light, heat and humidity, and
which does not cause bronze phenomenon, is provided. The ink composition
contains water, a yellow dye having an oxidation potential nobler than
1.0 V, and an aromatic compound, aliphatic compound and/or a salt thereof
having at least one of carboxyl group, sulfo group and phosphoric acid
group.