#200948 · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 95/100 (aaa) · Harmony 66/100 (triadic (soft)) · Distinguishable 100/100 (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.
Deep Indigo and White are very different (ΔE 101). They have distinctly different hues (98° apart) and their lightness is different, giving a clear light/dark split.
Deep Indigo text on White: 17.59:1 (AAA); White text on Deep Indigo: 17.59:1 (AAA). Both directions meet WCAG AA.
Triadic (soft) — workable but not a textbook harmony (harmony 66/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Yes — 17.6:1, which meets WCAG AA.
Their CIE76 ΔE is about 101 — very different.
clearly different colours (ΔE 101).
Explore each color: Deep Indigo #200948 · White #FFFFFF · Shades: Deep Indigo shades · White shades · Contrast checker →