#63C77C · #A3BB47
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 33/100 (clashing) · Distinguishable 78/100 (easy to tell apart) · Match 27/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Emerald and Lime are very different (ΔE 33). They have distinctly different hues (63° apart) and their lightness is similar, so they read as two same-weight colours.
Emerald text on Lime: 1.02:1 (Fail); Lime text on Emerald: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #004F20 clears it.
Clashing — awkward hue gap — tends to clash (harmony 33/100). 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 #004F20 clears AA.
Their CIE76 ΔE is about 33 — very different.
clearly different colours (ΔE 33).
Explore each color: Emerald #63C77C · Lime #A3BB47 · Shades: Emerald shades · Lime shades · Contrast checker →