BLUE PIGMENT COMPOSITION

Provided is a blue pigment composition that, when used as a colorant of a paint, has superior transparency, and has a shaded hue that is greenish. The present invention was arrived at through the discovery that when a blue pigment composition including a chloro-copper phthalocyanine with a specific average number of chlorine substitutions and including a specific copper phthalocyanine pigment derivative is used as a colorant for paint, a coated plate is obtained that has not only a greenish hue but also a greenish shaded hue, and demonstrates satisfactory dispersion and high transparency. 提供一种用作涂料的着色材时阴影的色相带绿色、透明性优异的蓝色颜料组合物。发现将含有特定平均氯取代数的氯化铜酞菁和特定铜酞菁颜料衍生物的蓝色颜料组合物用作涂料用的着色材时，可获得不仅具有带绿色的色相而且阴影的色相也带绿色、分散性也良好、透明性高的涂板，从而完成了本发明。