#008E91 · #328F70
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 92/100 (analogous) · Distinguishable 43/100 (somewhat similar) · Match 56/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Dark Cyan and Sea Green are a clear pair (ΔE 20). They have closely related hues (21° apart) and their lightness is similar, so they read as two same-weight colours.
Dark Cyan text on Sea Green: 1.00:1 (Fail); Sea Green text on Dark Cyan: 1.00:1 (Fail). Neither meets AA at body size — nudging one color to #001B1C clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 92/100). 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 #001B1C clears AA.
Their CIE76 ΔE is about 20 — a clear pair.
clearly different colours (ΔE 20).
Explore each color: Dark Cyan #008E91 · Sea Green #328F70 · Shades: Dark Cyan shades · Sea Green shades · Contrast checker →