* "Non-white" is not a standard scientific term for metals. Color is subjective and can change depending on how the metal is treated (polished, oxidized, etc.).

* Many metals can be different colors depending on their form. For example, gold is usually yellow, but it can also be purple!

Therefore, there's no definitive answer to your question.

However, if we consider the most common forms of metals, we could say that copper and brass are often considered non-white. Copper is reddish-brown, and brass (an alloy of copper and zinc) is usually yellow or gold-colored.

It's important to remember that this is just an observation, and the concept of "non-white" metals is not a rigorous scientific classification.