#C4E1C4 · #C8D8FA
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 73/100 (triadic) · Distinguishable 41/100 (somewhat similar) · Match 26/100 (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 34). They have distinctly different hues (101° 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 #4B644C clears it.
Triadic — triadic — a recognised, balanced pairing (harmony 73/100). 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 #4B644C clears AA.
Their CIE76 ΔE is about 34 — very different.
clearly different colours (ΔE 34).
Explore each color: Fog #C4E1C4 · Periwinkle #C8D8FA · Shades: Fog shades · Periwinkle shades · Contrast checker →