#565B24 · #594E7D
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 97/100 (complementary) · Distinguishable 65/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Dark Olive Green and Muted Indigo are very different (ΔE 61). They have near-opposite hues (171° apart) and their lightness is similar, so they read as two same-weight colours.
Dark Olive Green text on Muted Indigo: 1.04:1 (Fail); Muted Indigo text on Dark Olive Green: 1.04:1 (Fail). Neither meets AA at body size — nudging one color to #C6CE93 clears it.
Complementary — complementary — a recognised, balanced pairing (harmony 97/100). 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 #C6CE93 clears AA.
Their CIE76 ΔE is about 61 — very different.
clearly different colours (ΔE 61).
Explore each color: Dark Olive Green #565B24 · Muted Indigo #594E7D · Shades: Dark Olive Green shades · Muted Indigo shades · Contrast checker →