#D4CBFB · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 11/100 (fail) · Harmony 90/100 (triadic) · Distinguishable 43/100 (somewhat similar) · Match 33/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Periwinkle and White are very different (ΔE 30). They have distinctly different hues (109° apart) and their lightness is similar, so they read as two same-weight colours.
Periwinkle text on White: 1.53:1 (Fail); White text on Periwinkle: 1.53:1 (Fail). Neither meets AA at body size — nudging one color to #79719C clears it.
Triadic — triadic — a recognised, balanced pairing (harmony 90/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.5:1, below the 4.5:1 minimum. Nudging one colour to #79719C clears AA.
Their CIE76 ΔE is about 30 — very different.
clearly different colours (ΔE 30).
Explore each color: Periwinkle #D4CBFB · White #FFFFFF · Shades: Periwinkle shades · White shades · Contrast checker →