#574A85 · #575A0B
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 92/100 (complementary) · Distinguishable 79/100 (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.
Dark Slate Blue and Deep Lime are very different (ΔE 78). They have near-opposite hues (169° apart) and their lightness is different, giving a clear light/dark split.
Dark Slate Blue text on Deep Lime: 1.05:1 (Fail); Deep Lime text on Dark Slate Blue: 1.05:1 (Fail). Neither meets AA at body size — nudging one color to #CDC4FF clears it.
Complementary — complementary — a recognised, balanced pairing (harmony 92/100). 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 #CDC4FF clears AA.
Their CIE76 ΔE is about 78 — very different.
clearly different colours (ΔE 78).
Explore each color: Dark Slate Blue #574A85 · Deep Lime #575A0B · Shades: Dark Slate Blue shades · Deep Lime shades · Contrast checker →