#05636B · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 80/100 (aa) · Harmony 97/100 (complementary) · 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.
Dark Vivid Cyan and White are very different (ΔE 67). They have near-opposite hues (175° apart) and their lightness is different, giving a clear light/dark split.
Dark Vivid Cyan text on White: 6.99:1 (AA); White text on Dark Vivid Cyan: 6.99:1 (AA). Both directions meet WCAG AA.
Complementary — complementary — a recognised, balanced pairing (harmony 97/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Yes — 7.0:1, which meets WCAG AA.
Their CIE76 ΔE is about 67 — very different.
clearly different colours (ΔE 67).
Explore each color: Dark Vivid Cyan #05636B · White #FFFFFF · Shades: Dark Vivid Cyan shades · White shades · Contrast checker →