#9DDDFF · #D6DE01
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 82/100 (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.
Light Blue and Vivid Lime are very different (ΔE 108). They have distinctly different hues (139° apart) and their lightness is different, giving a clear light/dark split.
Light Blue text on Vivid Lime: 1.01:1 (Fail); Vivid Lime text on Light Blue: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #236381 clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 82/100). 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 #236381 clears AA.
Their CIE76 ΔE is about 108 — very different.
clearly different colours (ΔE 108).
Explore each color: Light Blue #9DDDFF · Vivid Lime #D6DE01 · Shades: Light Blue shades · Vivid Lime shades · Contrast checker →