#EFF8F4 · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 99/100 (split-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.
White Smoke and White are very close (ΔE 5). They have near-opposite hues (153° apart) and their lightness is similar, so they read as two same-weight colours.
White Smoke text on White: 1.08:1 (Fail); White text on White Smoke: 1.08:1 (Fail). Neither meets AA at body size — nudging one color to #717875 clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 99/100). 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 #717875 clears AA.
Their CIE76 ΔE is about 5 — very close.
a very near match (ΔE 4.9) — fine for most matching.
Explore each color: White Smoke #EFF8F4 · White #FFFFFF · Shades: White Smoke shades · White shades · Contrast checker →