#529C61 · #6C85CF
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 58/100 (triadic (soft)) · Distinguishable 58/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Jade and Blue are very different (ΔE 80). They have distinctly different hues (93° apart) and their lightness is similar, so they read as two same-weight colours.
Jade text on Blue: 1.07:1 (Fail); Blue text on Jade: 1.07:1 (Fail). Neither meets AA at body size — nudging one color to #002809 clears it.
Triadic (soft) — workable but not a textbook harmony (harmony 58/100). 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 #002809 clears AA.
Their CIE76 ΔE is about 80 — very different.
clearly different colours (ΔE 80).
Explore each color: Jade #529C61 · Blue #6C85CF · Shades: Jade shades · Blue shades · Contrast checker →