#91C1FF · #B7B5FD
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 100/100 (analogous) · Distinguishable 44/100 (somewhat similar) · Match 64/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Light Sky Blue and Pale Vivid Blue are a clear pair (ΔE 16). They have distinctly different hues (28° apart) and their lightness is similar, so they read as two same-weight colours.
Light Sky Blue text on Pale Vivid Blue: 1.02:1 (Fail); Pale Vivid Blue text on Light Sky Blue: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #214D82 clears it.
Analogous — analogous — 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 1.0:1, below the 4.5:1 minimum. Nudging one colour to #214D82 clears AA.
Their CIE76 ΔE is about 16 — a clear pair.
clearly different colours (ΔE 16).
Explore each color: Light Sky Blue #91C1FF · Pale Vivid Blue #B7B5FD · Shades: Light Sky Blue shades · Pale Vivid Blue shades · Contrast checker →