#111111 · #259A8A
Four independent scores (read the one that fits your goal): Readability 68/100 (aa) · Harmony 98/100 (complementary) · Distinguishable 90/100 (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.
DreamlessSleep and Dark Cyan are very different (ΔE 63). They have near-opposite hues (172° apart) and their lightness is different, giving a clear light/dark split.
DreamlessSleep text on Dark Cyan: 5.46:1 (AA); Dark Cyan text on DreamlessSleep: 5.46:1 (AA). Both directions meet WCAG AA.
Complementary — complementary — a recognised, balanced pairing (harmony 98/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Yes — 5.5:1, which meets WCAG AA.
Their CIE76 ΔE is about 63 — very different.
clearly different colours (ΔE 63).
Explore each color: DreamlessSleep #111111 · Dark Cyan #259A8A · Shades: DreamlessSleep shades · Dark Cyan shades · Contrast checker →