#6EB8FD · #A0AAFF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 97/100 (analogous) · Distinguishable 47/100 (somewhat similar) · Match 56/100 (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 Blue are a clear pair (ΔE 20). They have closely related hues (25° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Sky Blue text on Light Vivid Blue: 1.03:1 (Fail); Light Vivid Blue text on Deep Sky Blue: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #004679 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 97/100). 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 #004679 clears AA.
Their CIE76 ΔE is about 20 — a clear pair.
clearly different colours (ΔE 20).
Explore each color: Deep Sky Blue #6EB8FD · Light Vivid Blue #A0AAFF · Shades: Deep Sky Blue shades · Light Vivid Blue shades · Contrast checker →