#1C2009 · #20192E
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 89/100 (complementary) · Distinguishable 40/100 (somewhat similar) · Match 34/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Lime and Deep Dusty Indigo are very different (ΔE 30). They have near-opposite hues (170° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Lime text on Deep Dusty Indigo: 1.02:1 (Fail); Deep Dusty Indigo text on Deep Lime: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #81876C clears it.
Complementary — complementary — a recognised, balanced pairing (harmony 89/100). 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 #81876C clears AA.
Their CIE76 ΔE is about 30 — very different.
clearly different colours (ΔE 30).
Explore each color: Deep Lime #1C2009 · Deep Dusty Indigo #20192E · Shades: Deep Lime shades · Deep Dusty Indigo shades · Contrast checker →