#173F54 · #393E18
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 87/100 (triadic) · Distinguishable 71/100 (easy to tell apart) · Match 14/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Charcoal and Deep Dusty Lime are very different (ΔE 39). They have distinctly different hues (133° apart) and their lightness is similar, so they read as two same-weight colours.
Charcoal text on Deep Dusty Lime: 1.00:1 (Fail); Deep Dusty Lime text on Charcoal: 1.00:1 (Fail). Neither meets AA at body size — nudging one color to #80AAC2 clears it.
Triadic — triadic — a recognised, balanced pairing (harmony 87/100). 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 #80AAC2 clears AA.
Their CIE76 ΔE is about 39 — very different.
clearly different colours (ΔE 39).
Explore each color: Charcoal #173F54 · Deep Dusty Lime #393E18 · Shades: Charcoal shades · Deep Dusty Lime shades · Contrast checker →