#5CC290 · #9CA2F6
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 41/100 (clashing) · Distinguishable 53/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Emerald and Light Blue are very different (ΔE 83). They have distinctly different hues (85° apart) and their lightness is different, giving a clear light/dark split.
Emerald text on Light Blue: 1.07:1 (Fail); Light Blue text on Emerald: 1.07:1 (Fail). Neither meets AA at body size — nudging one color to #00482D clears it.
Clashing — awkward hue gap — tends to clash (harmony 41/100). 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 #00482D clears AA.
Their CIE76 ΔE is about 83 — very different.
clearly different colours (ΔE 83).
Explore each color: Emerald #5CC290 · Light Blue #9CA2F6 · Shades: Emerald shades · Light Blue shades · Contrast checker →