Hair dyeing composition comprising (a) a dye of formula (1) (b) at least one dye selected from the compounds of formulae (2) (3) (4) wherein D is the radical of a diazo component of the formula (2a) (2b) (2c) (2d) K is the radical of a coupling component selected from aniline derivatives phenol derivatives naphthalene derivative X is -CH= -O- -S- or -N(R7)- R1, R2, R3 end R4 independently from each other are hydrogen or C1-C4alkyl R5 and R6 independently from each other are hydrogen C1-C4alkyl or C1-C4alkoxy R7 and R9 independently from each other are unsubstituted or OH-, C1-C4alkoxy-, halogen-, amino-, C1-C4-mono or -dialkylamino-substituted C1-C4alkyl or phenyl R8 is hydrogen C1-C4alkyl Cl or nitro R10 is hydrogen C1-C4alkyl Cl nitro amino or C1-C4mono- or C1-C4dialkylamino R11 is hydrogen C1-C4alkyl or CN R12 is unsubstituted or OH- or CN-substituted C1-C4alkyl R13 is hydrogen or C1-C4alkyl R14 and R15 independently from each other are hydrogen C1-C4alkyl or C1-C4alkoxy or R14 and R15 together with the nitrogen and carbon atoms joining them together form a 5- or 6- membered ring R16 and R20 independently from each other are hydrogen C1-C4alkyl hydroxy Cl nitro amino, C1-C4mono- or dialkylamino R17, R18, R19, R21, R22 and R23 independently from each other are hydrogen or C1-C4alkyl R24 is hydrogen or C1-C4alkyl and An- is a colorless anion.Se describe una composición para teñir el cabello que contiene: (a) un tinte de la fórmula (1) (b) al menos un tinte seleccionado de los compuestos de las fórmulas (2), (3), (4), en donde D es el radical de un componente diazo de la fórmula (2a), (2b), (2c), (2d) K es el radical de un componente copulador seleccionado de derivados de anilina derivados de fenol derivados de naftaleno X es -CH=, -O-, -S- ó -N(R7)- R1, R2, R3 y R4 son hidrógeno independientemente entre sí o alquilo de C1-C4 R5 y R6 independientemente entre sí son hidrógeno alquilo de C1-C4 ó alcoxi de C1-C4 R7 y R9 son alquilo de C1-C4 no sustituidos o sustituidos
