#2CD2B9 · #FB91B4
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 92/100 (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.
Eucalyptus and Light Vivid Red are very different (ΔE 90). They have near-opposite hues (169° apart) and their lightness is different, giving a clear light/dark split.
Eucalyptus text on Light Vivid Red: 1.12:1 (Fail); Light Vivid Red text on Eucalyptus: 1.12:1 (Fail). Neither meets AA at body size — nudging one color to #004E44 clears it.
Complementary — complementary — a recognised, balanced pairing (harmony 92/100). 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 #004E44 clears AA.
Their CIE76 ΔE is about 90 — very different.
clearly different colours (ΔE 90).
Explore each color: Eucalyptus #2CD2B9 · Light Vivid Red #FB91B4 · Shades: Eucalyptus shades · Light Vivid Red shades · Contrast checker →