Rust

Rust always reminds me of a tool bench: iron-y orange under fluorescent light, not the clean orange of fresh signage. This one sits more brown than the orange-reds around it, with a slightly subdued saturation that keeps it from feeling like a warning light. Compared to Donkey Kong and Crimson Blaze, it loses some of the bright heat and lands closer to rusted orange depth rather than pure punch.

I use it for UI states where you want "active" without screaming: dashboards and finance apps that need warm emphasis on cards, totals, and category pills. It's great for manufacturing and field service interfaces where you're labeling materials, asset status, and component notes. In editorial layouts, it works well for map callouts and thumbnail overlays when you need warmth that reads grounded next to neutrals.

One quirk: on very warm creams it can flatten into brown. Pair it with cooler grays or crisp whites so the orange undertone stays legible.