A 1:2 chromium complex dye of the formula ##STR166## wherein A' and B' are each independently of the other the radical of a 1-hydroxy-2-aminobenzene which is unsubstituted or substituted by halogen, nitro, sulfo or low molecular alkyl or alkoxy, or is the radical of a 1-amino-2-hydroxy-4-sulfonaphthalene which is unsubstituted or substituted in the 6-position by nitro, Y' is a radical of the formula ##STR167## or of the formula ##STR168## or of the formula ##STR169## Ar.sup.3 is a benzene or naphthalene radical which radical is unsubstituted or substituted by chlorine, nitro, sulfo, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, R.sup.2 and R.sup.3 are different from each other and are each nitro or sulfo,
- m is 1, 2 or 3, and
- Ka.sup..sym. is a cation.