Reactive navy to black dye composition and dye product thereof

A reactive navy to black dye composition, comprising component A and component B, wherein component A is one or more selected from the group consisting of dye compounds of formula (I) and alkali metal salts thereof, and component B is one or more selected from the group consisting of dye compounds of formula (II) and alkali metal salts thereof, based on component A and component B, component A has a mass percentage of 5% to 50%, and component B has a mass percentage of 50% to 95%,

• in formula (I):
• D1 and D2 are each independently a group represented by the following formula (a) or (b);
• in the above formulae (I), (a) and (b):
• R1 and R2 are each independently hydrogen, —COR7, C1˜C4 alkyl or C1˜C4 alkyl substituted by hydroxyl, sulfo or carboxyl, in which R7 is C1˜C4 alkyl, C2˜C4 alkenyl or —NH2;
• R3 is hydrogen, C1˜C4 alkyl, C1˜C4 alkoxy, carboxyl or sulfo;
• R4˜R6 are each independently hydrogen, C1˜C4 alkyl, C1˜C4 alkoxy or sulfo;
• X1 and X2 are each independently —SO2Y1, —NHCO(CH2)pSO2Y2 or —CONH(CH2)qSO2Y3, wherein Y1˜Y3 are each independently —CH═CH2, —CH2CH2OSO3H or —CH2CH2Cl, p=1-3 and q=1-3;
• in formula (II):
• R8˜R11 are each independently hydrogen, C1˜C4 alkyl, C1˜C4 alkoxy or sulfo;
• Y4 and Y5 are each independently —CH═CH2, —CH2CH2OSO3H or —CH2CH2Cl.