A remark to the colours in German:
The colour "gold" is better referred to as "goldfarben", not "golden". Golden is rather used figuratively, for example in goldene Hochzeit, goldene Zeiten, goldene Regel.
Analogous metallic colours: silberfarben/silberfarbig (silver-coloured), kupferfarben/kupferfarbig (copper-coloured), bronzefarben/bronzefarbig (bronze-coloured), messingfarben/messingfarbig (brass-coloured)
Also: silbergrau (silver-grey), messinggelb (yellow like brass), kupferbraun (brown with a red lustre)
Violet, purple and mauve are often referred to as violett or lila without differentiation. More correct would be: violet = violett, purple = purpur, purpurfarben, mauve = fliederfarben (literally "lilac-coloured").