#EFFBF9 · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 88/100 (complementary) · Distinguishable 17/100 (hard to tell apart) · Match 89/100 (near match). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Azure and White are very close (ΔE 5). They have near-opposite hues (170° apart) and their lightness is similar, so they read as two same-weight colours.
Azure text on White: 1.06:1 (Fail); White text on Azure: 1.06:1 (Fail). Neither meets AA at body size — nudging one color to #6E7977 clears it.
Complementary — complementary — a recognised, balanced pairing (harmony 88/100). 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 #6E7977 clears AA.
Their CIE76 ΔE is about 5 — very close.
a very near match (ΔE 4.9) — fine for most matching.
Explore each color: Azure #EFFBF9 · White #FFFFFF · Shades: Azure shades · White shades · Contrast checker →