#B0C6DF · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 15/100 (fail) · Harmony 100/100 (split-complementary) · Distinguishable 60/100 (somewhat similar) · Match 43/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
CumulusCloud and White are a clear pair (ΔE 26). They have distinctly different hues (148° apart) and their lightness is different, giving a clear light/dark split.
CumulusCloud text on White: 1.75:1 (Fail); White text on CumulusCloud: 1.75:1 (Fail). Neither meets AA at body size — nudging one color to #64788F clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 100/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.8:1, below the 4.5:1 minimum. Nudging one colour to #64788F clears AA.
Their CIE76 ΔE is about 26 — a clear pair.
clearly different colours (ΔE 26).
Explore each color: CumulusCloud #B0C6DF · White #FFFFFF · Shades: CumulusCloud shades · White shades · Contrast checker →