#C4EEE8 · #FFD8DF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 99/100 (complementary) · Distinguishable 57/100 (somewhat similar) · Match 35/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
LightChalkBlue and Pale Pink are a clear pair (ΔE 30). They have near-opposite hues (178° apart) and their lightness is similar, so they read as two same-weight colours.
LightChalkBlue text on Pale Pink: 1.04:1 (Fail); Pale Pink text on LightChalkBlue: 1.04:1 (Fail). Neither meets AA at body size — nudging one color to #456B67 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 #456B67 clears AA.
Their CIE76 ΔE is about 30 — a clear pair.
clearly different colours (ΔE 30).
Explore each color: LightChalkBlue #C4EEE8 · Pale Pink #FFD8DF · Shades: LightChalkBlue shades · Pale Pink shades · Contrast checker →