Abstract: The invention generally relates to an Au comprising composition, in particular for use as a paint. In particular, the invention relates to a composition, a process for providing a coloured surface, and items comprising a coloured surface. The invention relates to a composition comprising the following components a. At least about 30 wt. % organic vehicle; b. About 0.5 to about 35 wt. % of Au as such present in the composition in the form of a Au organic compound; c. About 0.1 to about 10 wt. % of a tetravalent metal as such present in the composition in form of a tetravalent metal organic compound; d. About 0 to about 6 wt. % of Bi as such present in the composition in the form of a Bi organic compound; wherein the wt. % are based on the total weight of the composition.