#3AEDFA · #9DDDFF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 89/100 (analogous) · Distinguishable 56/100 (somewhat similar) · Match 40/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Aqua and Light Blue are a clear pair (ΔE 27). They have closely related hues (17° apart) and their lightness is different, giving a clear light/dark split.
Aqua text on Light Blue: 1.03:1 (Fail); Light Blue text on Aqua: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #00666D clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 89/100). 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 #00666D clears AA.
Their CIE76 ΔE is about 27 — a clear pair.
clearly different colours (ΔE 27).
Explore each color: Aqua #3AEDFA · Light Blue #9DDDFF · Shades: Aqua shades · Light Blue shades · Contrast checker →