#BEE0C2 · #C6D5FA
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 60/100 (triadic (soft)) · Distinguishable 41/100 (somewhat similar) · Match 20/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Fog and Periwinkle are very different (ΔE 36). They have distinctly different hues (96° apart) and their lightness is similar, so they read as two same-weight colours.
Fog text on Periwinkle: 1.02:1 (Fail); Periwinkle text on Fog: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #45644A clears it.
Triadic (soft) — workable but not a textbook harmony (harmony 60/100). 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 #45644A clears AA.
Their CIE76 ΔE is about 36 — very different.
clearly different colours (ΔE 36).
Explore each color: Fog #BEE0C2 · Periwinkle #C6D5FA · Shades: Fog shades · Periwinkle shades · Contrast checker →