#0187AE · #111111
Four independent scores (read the one that fits your goal): Readability 61/100 (aa) · Harmony 86/100 (complementary) · Distinguishable 98/100 (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.
Cerulean and DreamlessSleep are very different (ΔE 58). They have near-opposite hues (166° apart) and their lightness is different, giving a clear light/dark split.
Cerulean text on DreamlessSleep: 4.57:1 (AA); DreamlessSleep text on Cerulean: 4.57:1 (AA). Both directions meet WCAG AA.
Complementary — complementary — a recognised, balanced pairing (harmony 86/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Yes — 4.6:1, which meets WCAG AA.
Their CIE76 ΔE is about 58 — very different.
clearly different colours (ΔE 58).
Explore each color: Cerulean #0187AE · DreamlessSleep #111111 · Shades: Cerulean shades · DreamlessSleep shades · Contrast checker →