#7970C0 · #858114
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 97/100 (complementary) · Distinguishable 92/100 (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.
Dusty Blue and Olive are very different (ΔE 100). They have near-opposite hues (171° apart) and their lightness is different, giving a clear light/dark split.
Dusty Blue text on Olive: 1.05:1 (Fail); Olive text on Dusty Blue: 1.05:1 (Fail). Neither meets AA at body size — nudging one color to #1A004A clears it.
Complementary — complementary — a recognised, balanced pairing (harmony 97/100). 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 #1A004A clears AA.
Their CIE76 ΔE is about 100 — very different.
clearly different colours (ΔE 100).
Explore each color: Dusty Blue #7970C0 · Olive #858114 · Shades: Dusty Blue shades · Olive shades · Contrast checker →