Metal azo pigments, characterized in that they comprise the following components: a) at least three metal azo compounds which differ at least in the type of metal and which each contain • structural units of the formula, or the tautomeric forms thereof, in which R 1 and R 2 are each independently OH, NH 2 or NHR 5, R 3 and R 4 are each independently =O or =NR 5, R 5 is hydrogen or alkyl, preferably C 1 -C 4 -alkyl, and • Ni 2+ and/or Cu 2+ ions and at least one further metal ion ME, where Me is a di- or trivalent metal ion selected from the group of La 3+, Ce 3+, Pr 3+, Nd 2+, Nd 3+, Sm 2+, Sm 3+, Eu 2+, Eu 3+, Gd 3+, Tb 3+, Dy 3+, Ho 3+, Yb 2+, Yb 3+, Er 3+, Tm 3+, Mg 2+, Ca 2+, Sr 2+, Mn 2+, Y 3+, Sc 3+, Ti 2+, Ti 3+, Nb 3+, Mo 2+, Mo 3+, V 2+, V 3+, Zr 2+, Zr 3+, Cd 2+, Cr 3+, Pb 2+ and Ba 2+, with the proviso that the amount of Cu 2+ and Ni 2+ ions together is 70 to 99.5 mol% and the amount of metal ions Me is 30 to 0.5 mol%, based in each case on one mole of all metal ions in the metal azo pigment, and where the molar ratio of Cu 2+ to Ni 2+ ions in the metal azo pigment is 42:1 to 1:42, preferably 10:1 to 1:10 and more preferably 3:1 to 1:3, and b) at least one compound of the formula in which R 6 is hydrogen or alkyl, preferably C 1 -C 4 -alkyl optionally mono- or polysubstituted by OH. a) at least three metal azo compounds which differ at least in the type of metal and which each contain • structural units of the formula, or the tautomeric forms thereof, in which R 1 and R 2 are each independently OH, NH 2 or NHR 5, R 3 and R 4 are each independently =O or =NR 5, R 5 is hydrogen or alkyl, preferably C 1 -C 4 -alkyl, and • Ni 2+ and/or Cu 2+ ions and at least one further metal ion ME, where Me is a di- or trivalent metal ion selected from the group of La 3+, Ce 3+, Pr 3+, Nd 2+, Nd 3+, Sm 2+, Sm 3+, Eu 2+, Eu 3+, Gd 3+, Tb 3+, Dy 3+, Ho 3+, Yb 2+, Yb 3+, Er 3+, Tm 3+, Mg 2+, Ca 2+, Sr 2+, Mn 2+, Y 3+, Sc 3+, Ti 2+, Ti 3+, Nb 3+, Mo 2+, Mo 3+, V 2+, V 3+, Zr 2+, Zr 3+, Cd 2+, Cr 3+, Pb 2+ and Ba 2+, with the proviso that the amount of Cu 2+ and Ni 2+ ions together is 70 to 99.5 mol% and the amount of metal ions Me is 30 to 0.5 mol%, based in each case on one mole of all metal ions in the metal azo pigment, and where the molar ratio of Cu 2+ to Ni 2+ ions in the metal azo pigment is 42:1 to 1:42, preferably 10:1 to 1:10 and more preferably 3:1 to 1:3, and • structural units of the formula, or the tautomeric forms thereof, in which R 1 and R 2 are each independently OH, NH 2 or NHR 5, R 3 and R 4 are each independently =O or =NR 5, R 5 is hydrogen or alkyl, preferably C 1 -C 4 -alkyl, and R 1 and R 2 are each independently OH, NH 2 or NHR 5, R 3 and R 4 are each independently =O or =NR 5, R 5 is hydrogen or alkyl, preferably C 1 -C 4 -alkyl, and • Ni 2+ and/or Cu 2+ ions and at least one further metal ion ME, where Me is a di- or trivalent metal ion selected from the group of La 3+, Ce 3+, Pr 3+, Nd 2+, Nd 3+, Sm 2+, Sm 3+, Eu 2+, Eu 3+, Gd 3+, Tb 3+, Dy 3+, Ho 3+, Yb 2+, Yb 3+, Er 3+, Tm 3+, Mg 2+, Ca 2+, Sr 2+, Mn 2+, Y 3+, Sc 3+, Ti 2+, Ti 3+, Nb 3+, Mo 2+, Mo 3+, V 2+, V 3+, Zr 2+, Zr 3+, Cd 2+, Cr 3+, Pb 2+ and Ba 2+, with the proviso that the amount of Cu 2+ and Ni 2+ ions together is 70 to 99.5 mol% and the amount of metal ions Me is 30 to 0.5 mol%, based in each case on one mole of all metal ions in the metal azo pigment, and where the molar ratio of Cu 2+ to Ni 2+ ions in the metal azo pigment is 42:1 to 1:42, preferably 10:1 to 1:10 and more preferably 3:1 to 1:3, and b) at least one compound of the formula in which R 6 is hydrogen or alkyl, preferably C 1 -C 4 -alkyl optionally mono- or polysubstituted by OH.