#78DBB2 · #BDBCFF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 42/100 (clashing) · Distinguishable 48/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Eucalyptus and Periwinkle are very different (ΔE 69). They have distinctly different hues (86° apart) and their lightness is different, giving a clear light/dark split.
Eucalyptus text on Periwinkle: 1.07:1 (Fail); Periwinkle text on Eucalyptus: 1.07:1 (Fail). Neither meets AA at body size — nudging one color to #005C41 clears it.
Clashing — awkward hue gap — tends to clash (harmony 42/100). 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 #005C41 clears AA.
Their CIE76 ΔE is about 69 — very different.
clearly different colours (ΔE 69).
Explore each color: Eucalyptus #78DBB2 · Periwinkle #BDBCFF · Shades: Eucalyptus shades · Periwinkle shades · Contrast checker →