#509D61 · #829338
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 35/100 (clashing) · Distinguishable 70/100 (easy to tell apart) · Match 40/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Jade and Olive Drab are a clear pair (ΔE 27). They have distinctly different hues (62° apart) and their lightness is similar, so they read as two same-weight colours.
Jade text on Olive Drab: 1.03:1 (Fail); Olive Drab text on Jade: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #002C0C clears it.
Clashing — awkward hue gap — tends to clash (harmony 35/100). 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 #002C0C clears AA.
Their CIE76 ΔE is about 27 — a clear pair.
clearly different colours (ΔE 27).
Explore each color: Jade #509D61 · Olive Drab #829338 · Shades: Jade shades · Olive Drab shades · Contrast checker →