#005E84 · #00636B
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 78/100 (monochrome) · Distinguishable 20/100 (hard to tell apart) · Match 55/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Ocean and Dark Vivid Cyan are a clear pair (ΔE 20). They have closely related hues (13° apart) and their lightness is similar, so they read as two same-weight colours.
Ocean text on Dark Vivid Cyan: 1.02:1 (Fail); Dark Vivid Cyan text on Ocean: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #94D8FF clears it.
Monochrome — monochrome — a recognised, balanced pairing (harmony 78/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.0:1, below the 4.5:1 minimum. Nudging one colour to #94D8FF clears AA.
Their CIE76 ΔE is about 20 — a clear pair.
clearly different colours (ΔE 20).
Explore each color: Ocean #005E84 · Dark Vivid Cyan #00636B · Shades: Ocean shades · Dark Vivid Cyan shades · Contrast checker →