#AE6A00 · #D73F00
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 88/100 (analogous) · Distinguishable 17/100 (hard to tell apart) · Match 19/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Copper and Burnt Orange are very different (ΔE 37). They have closely related hues (19° apart) and their lightness is similar, so they read as two same-weight colours.
Copper text on Burnt Orange: 1.06:1 (Fail); Burnt Orange text on Copper: 1.06:1 (Fail). Neither meets AA at body size — nudging one color to #FFFDFC clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 88/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.1:1, below the 4.5:1 minimum. Nudging one colour to #FFFDFC clears AA.
Their CIE76 ΔE is about 37 — very different.
clearly different colours (ΔE 37).
Explore each color: Copper #AE6A00 · Burnt Orange #D73F00 · Shades: Copper shades · Burnt Orange shades · Contrast checker →