Color material compound

A compound represented by following general formula (I):

• in formula (I),
• X represents a methyl group or a halogen atom;
• R1 to R14 each independently represent a hydrogen atom, a halogen atom, a cyano group, a nitro group, an optionally N-alkylated amino group or ammonium group, a hydroxy group, an allyloxy group, an alkoxy group, a sulfo group, an optionally N-alkylated sulfamoyl group, a carboxyl group, an ester group, an optionally N-alkylated amide group, an optionally substituted hydrocarbon group having 1 to 12 carbon atoms, an optionally substituted aromatic hydrocarbon group having 6 to 12 carbon atoms, or an optionally substituted heterocyclic group having 3 to 12 carbon atoms, or adjacent two selected from R1 to R4, adjacent two selected from R5 to R8, R11 and R12, or R13 and R14 are bonded to each other to form a ring;
• Bm− represents a polyoxometalate anion comprising tungsten;
• m represents an integer of 1 to 20;
• and
• n represents an integer of 1 to 20,
• provided that n is determined such that the charge of the whole formula (I) becomes zero.