#81F277 · #BCD4FF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 73/100 (triadic) · Distinguishable 62/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Light Green and Periwinkle are very different (ΔE 92). They have distinctly different hues (103° apart) and their lightness is similar, so they read as two same-weight colours.
Light Green text on Periwinkle: 1.06:1 (Fail); Periwinkle text on Light Green: 1.06:1 (Fail). Neither meets AA at body size — nudging one color to #036B00 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 1.1:1, below the 4.5:1 minimum. Nudging one colour to #036B00 clears AA.
Their CIE76 ΔE is about 92 — very different.
clearly different colours (ΔE 92).
Explore each color: Light Green #81F277 · Periwinkle #BCD4FF · Shades: Light Green shades · Periwinkle shades · Contrast checker →