#5CCAA2 · #8FC478
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 49/100 (analogous (soft)) · Distinguishable 64/100 (somewhat similar) · Match 47/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Medium Aquamarine and Dark Sea Green are a clear pair (ΔE 24). They have distinctly different hues (56° apart) and their lightness is similar, so they read as two same-weight colours.
Medium Aquamarine text on Dark Sea Green: 1.01:1 (Fail); Dark Sea Green text on Medium Aquamarine: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #00523C clears it.
Analogous (soft) — workable but not a textbook harmony (harmony 49/100). 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 #00523C clears AA.
Their CIE76 ΔE is about 24 — a clear pair.
clearly different colours (ΔE 24).
Explore each color: Medium Aquamarine #5CCAA2 · Dark Sea Green #8FC478 · Shades: Medium Aquamarine shades · Dark Sea Green shades · Contrast checker →