Burnt Orange (#CC5500) is a medium, highly saturated brown hue. Burnt orange is deep and earthy, the colour of the University of Texas and of 70s interiors.
In RGB it is made of 204 red, 85 green and 0 blue. Its HSL hue angle is 25° with 100% saturation and 40% lightness, while its perceptual OKLCH lightness is 59% with a chroma of 0.169. For print, a starting CMYK mix is 0% cyan, 58% magenta, 100% yellow and 20% black.
As a text color on white, Burnt Orange has a contrast ratio of 4.31:1, which passes AA only for large text and UI parts. On black it reaches 4.87:1 and passes AA for normal text. If you use Burnt Orange as a background, put black (or very dark) text on it. The APCA lightness contrast is Lc 35 for black text and Lc -74 for white text.
Its perceptual complement is #008CB1, close to steel blue. Colors that look most similar are rust, copper, caramel. People with red-green color blindness see burnt orange quite differently (ΔE 14), so do not rely on it alone to signal meaning.