To provide a novel phthalocyanine compound, and an inkjet ink and inkjet recording method capable of an image having an excellent hue, fastness to light and ozone gas resistance. To provide various coloring compositions such as an ink sheet for heat-sensitive recording material, color toner for electrophotography, and color filter, and to provide improving method of oxidation resistance of an image. [Means for Resolution] A phthalocyanine compound substituted with --SO.sub.2NH--Z (Z represents a heterocyclic group) in at least one combination of 2 and 3, 6 and 7, 10 and 11, and 14 and 15-positions, wherein at least one of the 1 to 16-positions has two or more carbon atoms and the total number of the carbon atom thereof is 8 or more, inkjet ink using the compound, ink sheet, color toner and a color filter composition, which use the compound.