‘Rust' is a red color resembling iron oxide.

It is a commonly used color on cars and appears roughly the same color as photographic safelights when used over a standard tungsten light source.

The first recorded use of rust as a color name in English was in 1692.

[2] Rust is named after the resulting phenomenon of the oxidation of iron.

The word is closely related to the term "ruddy," which also refers to a reddish coloring in an object.