#BBD6FF · #C0DFB6
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 93/100 (triadic) · Distinguishable 53/100 (somewhat similar) · Match 4/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Periwinkle and Light Dusty Green are very different (ΔE 43). They have distinctly different hues (111° apart) and their lightness is similar, so they read as two same-weight colours.
Periwinkle text on Light Dusty Green: 1.02:1 (Fail); Light Dusty Green text on Periwinkle: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #475E82 clears it.
Triadic — triadic — a recognised, balanced pairing (harmony 93/100). 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 #475E82 clears AA.
Their CIE76 ΔE is about 43 — very different.
clearly different colours (ΔE 43).
Explore each color: Periwinkle #BBD6FF · Light Dusty Green #C0DFB6 · Shades: Periwinkle shades · Light Dusty Green shades · Contrast checker →