#9CD8FF · #BBCFFF
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 88/100 (analogous) · Distinguishable 39/100 (hard to tell apart) · Match 71/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Light Sky Blue and Periwinkle are a clear pair (ΔE 13). They have closely related hues (19° apart) and their lightness is similar, so they read as two same-weight colours.
Light Sky Blue text on Periwinkle: 1.01:1 (Fail); Periwinkle text on Light Sky Blue: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #235E80 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 88/100). 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 #235E80 clears AA.
Their CIE76 ΔE is about 13 — a clear pair.
clearly different colours (ΔE 13).
Explore each color: Light Sky Blue #9CD8FF · Periwinkle #BBCFFF · Shades: Light Sky Blue shades · Periwinkle shades · Contrast checker →