#3880C0 · #AA6C13
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 94/100 (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.
Steel Blue and Copper are very different (ΔE 96). They have near-opposite hues (173° apart) and their lightness is similar, so they read as two same-weight colours.
Steel Blue text on Copper: 1.03:1 (Fail); Copper text on Steel Blue: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #000C23 clears it.
Complementary — 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 1.0:1, below the 4.5:1 minimum. Nudging one colour to #000C23 clears AA.
Their CIE76 ΔE is about 96 — very different.
clearly different colours (ΔE 96).
Explore each color: Steel Blue #3880C0 · Copper #AA6C13 · Shades: Steel Blue shades · Copper shades · Contrast checker →