#66CC9A · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 19/100 (fail) · Harmony 100/100 (split-complementary) · Distinguishable 83/100 (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.
Medium Aquamarine and White are very different (ΔE 51). They have near-opposite hues (151° apart) and their lightness is different, giving a clear light/dark split.
Medium Aquamarine text on White: 1.97:1 (Fail); White text on Medium Aquamarine: 1.97:1 (Fail). Neither meets AA at body size — nudging one color to #0F875A clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 100/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 2.0:1, below the 4.5:1 minimum. Nudging one colour to #0F875A clears AA.
Their CIE76 ΔE is about 51 — very different.
clearly different colours (ΔE 51).
Explore each color: Medium Aquamarine #66CC9A · White #FFFFFF · Shades: Medium Aquamarine shades · White shades · Contrast checker →