Blue pigment composition for a color filter, a color filter for a color filter and a blue light-cur

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PROBLEM TO BE SOLVED : To provide a blue pigment composition for color filter which is small in a thermal history change under high temperature.SOLUTION : By mass, based on 100 parts of triarylmethane pigment represented by formula (I), 3-186 parts of blue metal phthalocyanine pigment are contained, where in the formula (I), R, R, R, Rare a hydrogen atom, a C1-8 alkyl group, or a phenyl group which may be the same as or different from one another.