#006A12 · #565C00
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 14/100 (clashing) · Distinguishable 76/100 (easy 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.
Dark Green and Dark Olive Green are very different (ΔE 32). They have distinctly different hues (66° apart) and their lightness is similar, so they read as two same-weight colours.
Dark Green text on Dark Olive Green: 1.05:1 (Fail); Dark Olive Green text on Dark Green: 1.05:1 (Fail). Neither meets AA at body size — nudging one color to #89E189 clears it.
Clashing — awkward hue gap — tends to clash (harmony 14/100). 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 #89E189 clears AA.
Their CIE76 ΔE is about 32 — very different.
clearly different colours (ΔE 32).
Explore each color: Dark Green #006A12 · Dark Olive Green #565C00 · Shades: Dark Green shades · Dark Olive Green shades · Contrast checker →