#99C666 · #FD8FA2
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 73/100 (triadic) · Distinguishable 43/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Green and Light Vivid Red are very different (ΔE 82). They have distinctly different hues (98° apart) and their lightness is similar, so they read as two same-weight colours.
Green text on Light Vivid Red: 1.10:1 (Fail); Light Vivid Red text on Green: 1.10:1 (Fail). Neither meets AA at body size — nudging one color to #2F4B00 clears it.
Triadic — triadic — a recognised, balanced pairing (harmony 73/100). 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 #2F4B00 clears AA.
Their CIE76 ΔE is about 82 — very different.
clearly different colours (ΔE 82).
Explore each color: Green #99C666 · Light Vivid Red #FD8FA2 · Shades: Green shades · Light Vivid Red shades · Contrast checker →