#339E8C · #B67B49
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 94/100 (split-complementary) · Distinguishable 100/100 (easy to tell apart) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Cadet Blue and Copper are very different (ΔE 63). They have distinctly different hues (142° apart) and their lightness is similar, so they read as two same-weight colours.
Cadet Blue text on Copper: 1.08:1 (Fail); Copper text on Cadet Blue: 1.08:1 (Fail). Neither meets AA at body size — nudging one color to #002721 clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 94/100). 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 #002721 clears AA.
Their CIE76 ΔE is about 63 — very different.
clearly different colours (ΔE 63).
Explore each color: Cadet Blue #339E8C · Copper #B67B49 · Shades: Cadet Blue shades · Copper shades · Contrast checker →