#668A1B · #9163BC
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 91/100 (complementary) · Distinguishable 75/100 (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.
Olive Drab and Amethyst are very different (ΔE 112). They have near-opposite hues (168° apart) and their lightness is different, giving a clear light/dark split.
Olive Drab text on Amethyst: 1.11:1 (Fail); Amethyst text on Olive Drab: 1.11:1 (Fail). Neither meets AA at body size — nudging one color to #030A00 clears it.
Complementary — complementary — a recognised, balanced pairing (harmony 91/100). 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 #030A00 clears AA.
Their CIE76 ΔE is about 112 — very different.
clearly different colours (ΔE 112).
Explore each color: Olive Drab #668A1B · Amethyst #9163BC · Shades: Olive Drab shades · Amethyst shades · Contrast checker →