#71B5F2 · #9BBC6C
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 99/100 (triadic) · Distinguishable 85/100 (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.
Cyan and Dark Sea Green are very different (ΔE 76). They have distinctly different hues (124° apart) and their lightness is similar, so they read as two same-weight colours.
Cyan text on Dark Sea Green: 1.02:1 (Fail); Dark Sea Green text on Cyan: 1.02:1 (Fail). Neither meets AA at body size — nudging one color to #004778 clears it.
Triadic — triadic — 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 1.0:1, below the 4.5:1 minimum. Nudging one colour to #004778 clears AA.
Their CIE76 ΔE is about 76 — very different.
clearly different colours (ΔE 76).
Explore each color: Cyan #71B5F2 · Dark Sea Green #9BBC6C · Shades: Cyan shades · Dark Sea Green shades · Contrast checker →