#B6DDF7 · #C7D7FC
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 86/100 (analogous) · Distinguishable 15/100 (hard to tell apart) · Match 79/100 (close). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Light Blue and Periwinkle are very close (ΔE 10). They have closely related hues (18° apart) and their lightness is similar, so they read as two same-weight colours.
Light Blue text on Periwinkle: 1.01:1 (Fail); Periwinkle text on Light Blue: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #3F6278 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 86/100). 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 #3F6278 clears AA.
Their CIE76 ΔE is about 10 — very close.
close but visibly different (ΔE 9.8).
Explore each color: Light Blue #B6DDF7 · Periwinkle #C7D7FC · Shades: Light Blue shades · Periwinkle shades · Contrast checker →