#78D8A8 · #B5BAFF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 43/100 (clashing) · Distinguishable 49/100 (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 Pale Vivid Blue are very different (ΔE 72). They have distinctly different hues (86° apart) and their lightness is similar, so they read as two same-weight colours.
Eucalyptus text on Pale Vivid Blue: 1.07:1 (Fail); Pale Vivid Blue text on Eucalyptus: 1.07:1 (Fail). Neither meets AA at body size — nudging one color to #005A3A clears it.
Clashing — awkward hue gap — tends to clash (harmony 43/100). 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 #005A3A clears AA.
Their CIE76 ΔE is about 72 — very different.
clearly different colours (ΔE 72).
Explore each color: Eucalyptus #78D8A8 · Pale Vivid Blue #B5BAFF · Shades: Eucalyptus shades · Pale Vivid Blue shades · Contrast checker →