A method for producing coated substrate bodies having a colored coating surface, the method comprising following steps: a) providing one substrate body or a plurality of substrate bodies comprising one or more substrate surfaces to be coated in an interior of a vacuum coating chamber, b) after execution of step a), deposition of a coating on the one or more substrate surfaces to be coated, wherein the deposition of the coating involves deposition of a metallic layer, wherein if the coating being deposited comprises further layers, the metallic layer is deposited as a top layer, c) after execution of step b), forming the colored coating surface by anodic oxidation of the metallic layer, wherein the metallic layer is deposited as a single metallic layer comprising at least two different metals and the anodic oxidation takes place in an alkaline electrolyte bath having a pH value between 12 and 14, wherein the one or more substrate surfaces to be coated are connected as anodes and the alkaline electrolyte bath comprises sodium hydroxide (NaOH) and is an aqueous sodium hydroxide solution having a NaOH concentration not lower than 0.5 and not higher than 0.6 in weight percentage; wherein the metallic layer is • made of a mixture of aluminum and titanium AlTi, or • made of an AlTi alloy, or • made of a mixture of titanium and silicon TiSi, or • formed of a mixture of aluminium and silicon or the metallic layer comprises • a mixture of aluminium and chromium,or • a mixture of metals comprising zirconium, or • a mixture of metals comprising niobium, or • a mixture of metals comprising tantalum, or • a mixture of metals comprising chromium. a) providing one substrate body or a plurality of substrate bodies comprising one or more substrate surfaces to be coated in an interior of a vacuum coating chamber, b) after execution of step a), deposition of a coating on the one or more substrate surfaces to be coated, wherein the deposition of the coating involves deposition of a metallic layer, wherein if the coating being deposited comprises further layers, the metallic layer is deposited as a top layer, c) after execution of step b), forming the colored coating surface by anodic oxidation of the metallic layer, wherein the metallic layer is deposited as a single metallic layer comprising at least two different metals and the anodic oxidation takes place in an alkaline electrolyte bath having a pH value between 12 and 14, wherein the one or more substrate surfaces to be coated are connected as anodes and the alkaline electrolyte bath comprises sodium hydroxide (NaOH) and is an aqueous sodium hydroxide solution having a NaOH concentration not lower than 0.5 and not higher than 0.6 in weight percentage; wherein the metallic layer is • made of a mixture of aluminum and titanium AlTi, or • made of an AlTi alloy, or • made of a mixture of titanium and silicon TiSi, or • formed of a mixture of aluminium and silicon • made of a mixture of aluminum and titanium AlTi, or • made of an AlTi alloy, or • made of a mixture of titanium and silicon TiSi, or • formed of a mixture of aluminium and silicon or the metallic layer comprises • a mixture of aluminium and chromium,or • a mixture of metals comprising zirconium, or • a mixture of metals comprising niobium, or • a mixture of metals comprising tantalum, or • a mixture of metals comprising chromium. • a mixture of aluminium and chromium,or • a mixture of metals comprising zirconium, or • a mixture of metals comprising niobium, or • a mixture of metals comprising tantalum, or • a mixture of metals comprising chromium. <EOS>