#E9EADB · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 4/100 (fail) · Harmony 30/100 (clashing) · Distinguishable 38/100 (hard to tell apart) · Match 76/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
ReallyLightGreen and White are a clear pair (ΔE 11). They have distinctly different hues (64° apart) and their lightness is similar, so they read as two same-weight colours.
ReallyLightGreen text on White: 1.22:1 (Fail); White text on ReallyLightGreen: 1.22:1 (Fail). Neither meets AA at body size — nudging one color to #77776A clears it.
Clashing — awkward hue gap — tends to clash (harmony 30/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.2:1, below the 4.5:1 minimum. Nudging one colour to #77776A clears AA.
Their CIE76 ΔE is about 11 — a clear pair.
clearly different colours (ΔE 11).
Explore each color: ReallyLightGreen #E9EADB · White #FFFFFF · Shades: ReallyLightGreen shades · White shades · Contrast checker →