The coloring matter compound is represented by the following general formula (1): wherein R1, R2, R6 represent an alkyl group; R3 to R5 represent an alkyl group, or satisfy either of the following conditions i) and ii): i) R3 and R4 are bonded to each other, so as to form a cyclic organic functional group containing R3, R4 and a carbon atom bonded to R3 and R4, and R5 represents an alkyl group; ii) R3 to R5 are bonded to one another, so as to form a cyclic organic functional group containing R3, R4, R5 and a carbon atom bonded to R3 to R5; and R7, R8 represent an alkyl group or an acyl group, or R7 and R8 are bonded to each other, so as to form a cyclic organic functional group containing R7, R8 and a nitrogen atom bonded simultaneously to R7 and R8.