#259A8A · #9177BA
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 55/100 (triadic (soft)) · Distinguishable 59/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Dark Cyan and Dusty Indigo are very different (ΔE 67). They have distinctly different hues (91° apart) and their lightness is different, giving a clear light/dark split.
Dark Cyan text on Dusty Indigo: 1.09:1 (Fail); Dusty Indigo text on Dark Cyan: 1.09:1 (Fail). Neither meets AA at body size — nudging one color to #00211B clears it.
Triadic (soft) — workable but not a textbook harmony (harmony 55/100). 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 #00211B clears AA.
Their CIE76 ΔE is about 67 — very different.
clearly different colours (ΔE 67).
Explore each color: Dark Cyan #259A8A · Dusty Indigo #9177BA · Shades: Dark Cyan shades · Dusty Indigo shades · Contrast checker →