#7B59F6 · #858100
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 85/100 (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.
Medium Slate Blue and Olive are very different (ΔE 146). They have near-opposite hues (165° apart) and their lightness is different, giving a clear light/dark split.
Medium Slate Blue text on Olive: 1.12:1 (Fail); Olive text on Medium Slate Blue: 1.12:1 (Fail). Neither meets AA at body size — nudging one color to #19004A clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 85/100). 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 #19004A clears AA.
Their CIE76 ΔE is about 146 — very different.
clearly different colours (ΔE 146).
Explore each color: Medium Slate Blue #7B59F6 · Olive #858100 · Shades: Medium Slate Blue shades · Olive shades · Contrast checker →