#111111 · #235B7A
Four independent scores (read the one that fits your goal): Readability 31/100 (fail) · Harmony 99/100 (split-complementary) · Distinguishable 83/100 (easy to tell apart) · Match 13/100 (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 40). They have near-opposite hues (159° apart) and their lightness is different, giving a clear light/dark split.
DreamlessSleep text on Dark Cyan: 2.56:1 (Fail); Dark Cyan text on DreamlessSleep: 2.56:1 (Fail). Neither meets AA at body size — nudging one color to #CBCBCB clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 99/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 2.6:1, below the 4.5:1 minimum. Nudging one colour to #CBCBCB clears AA.
Their CIE76 ΔE is about 40 — very different.
clearly different colours (ΔE 40).
Explore each color: DreamlessSleep #111111 · Dark Cyan #235B7A · Shades: DreamlessSleep shades · Dark Cyan shades · Contrast checker →