#D5E1EF · #E9DECF
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 99/100 (complementary) · Distinguishable 47/100 (somewhat similar) · Match 62/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Gainsboro and ModerateWhite are a clear pair (ΔE 17). They have near-opposite hues (178° apart) and their lightness is similar, so they read as two same-weight colours.
Gainsboro text on ModerateWhite: 1.00:1 (Fail); ModerateWhite text on Gainsboro: 1.00:1 (Fail). Neither meets AA at body size — nudging one color to #5A6471 clears it.
Complementary — 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 1.0:1, below the 4.5:1 minimum. Nudging one colour to #5A6471 clears AA.
Their CIE76 ΔE is about 17 — a clear pair.
clearly different colours (ΔE 17).
Explore each color: Gainsboro #D5E1EF · ModerateWhite #E9DECF · Shades: Gainsboro shades · ModerateWhite shades · Contrast checker →