#002600 · #081B42
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 60/100 (triadic (soft)) · Distinguishable 53/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Vivid Green and Deep Blue are very different (ΔE 55). They have distinctly different hues (100° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Vivid Green text on Deep Blue: 1.03:1 (Fail); Deep Blue text on Deep Vivid Green: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #668E62 clears it.
Triadic (soft) — workable but not a textbook harmony (harmony 60/100). 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 #668E62 clears AA.
Their CIE76 ΔE is about 55 — very different.
clearly different colours (ΔE 55).
Explore each color: Deep Vivid Green #002600 · Deep Blue #081B42 · Shades: Deep Vivid Green shades · Deep Blue shades · Contrast checker →