Rust (#B7410E) is a medium, highly saturated brown hue. Rust is a reddish brown with orange undertones, great for rustic and industrial designs.
In RGB it is made of 183 red, 65 green and 14 blue. Its HSL hue angle is 18° with 86% saturation and 39% lightness, while its perceptual OKLCH lightness is 54% with a chroma of 0.163. For print, a starting CMYK mix is 0% cyan, 64% magenta, 92% yellow and 28% black.
As a text color on white, Rust has a contrast ratio of 5.56:1, which passes WCAG AA for normal text. On black it reaches 3.78:1 and passes AA only for large text. If you use Rust as a background, put white text on it. The APCA lightness contrast is Lc 27 for black text and Lc -82 for white text.
Its perceptual complement is #007A94, close to cerulean. Colors that look most similar are burnt orange, brown, cherry red. People with red-green color blindness see rust quite differently (ΔE 15), so do not rely on it alone to signal meaning.