Gold bronze is a metallic color that is often associated with richness and luxury. However, there are numerous synonyms that can be used in place of gold bronze. For example, the word "copper" can refer to a similar metallic hue with a slightly reddish tint. "Amber" is another synonym for gold bronze that can describe a warm, rich color that has a slightly yellow or orange undertone. "Brass" and "bronze" are also options, which are particularly useful when describing metal work or sculptures. Ultimately, there are plenty of words that can be used to replace gold bronze depending on the context and desired effect.