[Problem] To provide a coloring matter which has a good hue, and is capable of forming an image high in fastness property under various use conditions and environmental conditions, and particularly suitable for an ink. [Solving Means] A coloring matter represented by the following formula (I): wherein in the formula, G represents a heterocyclic group, and n represents an integer of 1 to 3; when n is 1, R, X, Y, Z, Q, and G each represents a monovalent group; when n is 2, R, X, Y, Z, Q, and G each represents a monovalent or divalent substituent, provided that at least one represents a divalent substituent; and when n is 3, R, X, Y, Z, Q, and G each represents a monovalent, divalent or trivalent substituent, provided that at least two each represents a divalent substituent, or at least one represents a trivalent substituent.