#00231A · #1D182F
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 42/100 (clashing) · Distinguishable 23/100 (hard to tell apart) · Match 34/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Deep Vivid Teal and Deep Dusty Indigo are very different (ΔE 30). They have distinctly different hues (88° apart) and their lightness is similar, so they read as two same-weight colours.
Deep Vivid Teal text on Deep Dusty Indigo: 1.03:1 (Fail); Deep Dusty Indigo text on Deep Vivid Teal: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #678A7E clears it.
Clashing — awkward hue gap — tends to clash (harmony 42/100). 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 #678A7E clears AA.
Their CIE76 ΔE is about 30 — very different.
clearly different colours (ΔE 30).
Explore each color: Deep Vivid Teal #00231A · Deep Dusty Indigo #1D182F · Shades: Deep Vivid Teal shades · Deep Dusty Indigo shades · Contrast checker →