#00B399 · #5EAF6A
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 91/100 (analogous) · Distinguishable 63/100 (somewhat similar) · Match 43/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Light Sea Green and Medium Sea Green are a clear pair (ΔE 26). They have distinctly different hues (42° apart) and their lightness is similar, so they read as two same-weight colours.
Light Sea Green text on Medium Sea Green: 1.01:1 (Fail); Medium Sea Green text on Light Sea Green: 1.01:1 (Fail). Neither meets AA at body size — nudging one color to #003E33 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 91/100). 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 #003E33 clears AA.
Their CIE76 ΔE is about 26 — a clear pair.
clearly different colours (ΔE 26).
Explore each color: Light Sea Green #00B399 · Medium Sea Green #5EAF6A · Shades: Light Sea Green shades · Medium Sea Green shades · Contrast checker →