Rust Brown — Rust Brown carries the oxidized, weathered look of rust on metal, giving it its name. It belongs to the Orange,Brown family: a dark, vivid tone with hex code #8B3103 and RGB values of 139, 49, 3. Its dominant channel values give it a warm undertone that reads as vivid rather than flat. Rust Brown pairs well with natural wood tones and warm beiges and works nicely in interior accent walls. Nearest neighbors: tangerine, chestnut.