#00FF00 · #D6DE01
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 33/100 (clashing) · 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.
Green and Vivid Lime are very different (ΔE 63). They have distinctly different hues (58° apart) and their lightness is similar, so they read as two same-weight colours.
Green text on Vivid Lime: 1.07:1 (Fail); Vivid Lime text on Green: 1.07:1 (Fail). Neither meets AA at body size — nudging one color to #006C00 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 1.1:1, below the 4.5:1 minimum. Nudging one colour to #006C00 clears AA.
Their CIE76 ΔE is about 63 — very different.
clearly different colours (ΔE 63).
Explore each color: Green #00FF00 · Vivid Lime #D6DE01 · Shades: Green shades · Vivid Lime shades · Contrast checker →