#0F1C33 · #1D1831
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 99/100 (analogous) · Distinguishable 24/100 (hard to tell apart) · Match 85/100 (close). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Blue and Deep Dusty Indigo are very close (ΔE 7). They have distinctly different hues (34° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Blue text on Deep Dusty Indigo: 1.01:1 (Fail); Deep Dusty Indigo text on Deep Blue: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #7384A0 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 #7384A0 clears AA.
Their CIE76 ΔE is about 7 — very close.
close but visibly different (ΔE 6.7).
Explore each color: Deep Blue #0F1C33 · Deep Dusty Indigo #1D1831 · Shades: Deep Blue shades · Deep Dusty Indigo shades · Contrast checker →