#1BC7EC · #6FBAFF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 92/100 (analogous) · Distinguishable 42/100 (somewhat similar) · Match 42/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Sky Blue and Light Vivid Cyan are a clear pair (ΔE 26). They have closely related hues (18° apart) and their lightness is different, giving a clear light/dark split.
Deep Sky Blue text on Light Vivid Cyan: 1.03:1 (Fail); Light Vivid Cyan text on Deep Sky Blue: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #004E5E clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 92/100). 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 #004E5E clears AA.
Their CIE76 ΔE is about 26 — a clear pair.
clearly different colours (ΔE 26).
Explore each color: Deep Sky Blue #1BC7EC · Light Vivid Cyan #6FBAFF · Shades: Deep Sky Blue shades · Light Vivid Cyan shades · Contrast checker →