#3A93C9 · #6E86D1
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 95/100 (analogous) · Distinguishable 42/100 (somewhat similar) · Match 53/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Cyan and Blue are a clear pair (ΔE 21). They have closely related hues (23° apart) and their lightness is similar, so they read as two same-weight colours.
Cyan text on Blue: 1.03:1 (Fail); Blue text on Cyan: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #00253C clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 95/100). 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 #00253C clears AA.
Their CIE76 ΔE is about 21 — a clear pair.
clearly different colours (ΔE 21).
Explore each color: Cyan #3A93C9 · Blue #6E86D1 · Shades: Cyan shades · Blue shades · Contrast checker →