#03C6B2 · #BB96F1
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 41/100 (clashing) · Distinguishable 79/100 (easy to tell apart) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Dark Turquoise and Light Indigo are very different (ΔE 87). They have distinctly different hues (91° apart) and their lightness is different, giving a clear light/dark split.
Dark Turquoise text on Light Indigo: 1.11:1 (Fail); Light Indigo text on Dark Turquoise: 1.11:1 (Fail). Neither meets AA at body size — nudging one color to #00463D clears it.
Clashing — awkward hue gap — tends to clash (harmony 41/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.1:1, below the 4.5:1 minimum. Nudging one colour to #00463D clears AA.
Their CIE76 ΔE is about 87 — very different.
clearly different colours (ΔE 87).
Explore each color: Dark Turquoise #03C6B2 · Light Indigo #BB96F1 · Shades: Dark Turquoise shades · Light Indigo shades · Contrast checker →