#2A3A5A · #3C3457
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 99/100 (analogous) · Distinguishable 30/100 (hard to tell apart) · Match 81/100 (close). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Charcoal and Dark Dusty Indigo are very close (ΔE 9). They have distinctly different hues (34° apart) and their lightness is similar, so they read as two same-weight colours.
Charcoal text on Dark Dusty Indigo: 1.02:1 (Fail); Dark Dusty Indigo text on Charcoal: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #8FA3C8 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 99/100). 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 #8FA3C8 clears AA.
Their CIE76 ΔE is about 9 — very close.
close but visibly different (ΔE 8.8).
Explore each color: Charcoal #2A3A5A · Dark Dusty Indigo #3C3457 · Shades: Charcoal shades · Dark Dusty Indigo shades · Contrast checker →