#A0C258 · #FB8BA8
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 64/100 (triadic (soft)) · Distinguishable 49/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Yellow Green and Light Vivid Red are very different (ΔE 86). They have distinctly different hues (95° apart) and their lightness is different, giving a clear light/dark split.
Yellow Green text on Light Vivid Red: 1.11:1 (Fail); Light Vivid Red text on Yellow Green: 1.11:1 (Fail). Neither meets AA at body size — nudging one color to #354800 clears it.
Triadic (soft) — workable but not a textbook harmony (harmony 64/100). 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 #354800 clears AA.
Their CIE76 ΔE is about 86 — very different.
clearly different colours (ΔE 86).
Explore each color: Yellow Green #A0C258 · Light Vivid Red #FB8BA8 · Shades: Yellow Green shades · Light Vivid Red shades · Contrast checker →