#BDDEC7 · #CBD3F4
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 46/100 (triadic (soft)) · Distinguishable 30/100 (hard to tell apart) · Match 31/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
SpiritedGreen and Periwinkle are very different (ΔE 31). They have distinctly different hues (90° apart) and their lightness is similar, so they read as two same-weight colours.
SpiritedGreen text on Periwinkle: 1.02:1 (Fail); Periwinkle text on SpiritedGreen: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #45624F clears it.
Triadic (soft) — workable but not a textbook harmony (harmony 46/100). 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 #45624F clears AA.
Their CIE76 ΔE is about 31 — very different.
clearly different colours (ΔE 31).
Explore each color: SpiritedGreen #BDDEC7 · Periwinkle #CBD3F4 · Shades: SpiritedGreen shades · Periwinkle shades · Contrast checker →