#5BC6B8 · #E896AA
Four independent scores (read the one that fits your goal): Readability 2/100 (fail) · Harmony 100/100 (complementary) · Distinguishable 90/100 (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.
Medium Aquamarine and Light Red are very different (ΔE 68). They have near-opposite hues (173° apart) and their lightness is similar, so they read as two same-weight colours.
Medium Aquamarine text on Light Red: 1.09:1 (Fail); Light Red text on Medium Aquamarine: 1.09:1 (Fail). Neither meets AA at body size — nudging one color to #004A43 clears it.
Complementary — complementary — a recognised, balanced pairing (harmony 100/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.1:1, below the 4.5:1 minimum. Nudging one colour to #004A43 clears AA.
Their CIE76 ΔE is about 68 — very different.
clearly different colours (ΔE 68).
Explore each color: Medium Aquamarine #5BC6B8 · Light Red #E896AA · Shades: Medium Aquamarine shades · Light Red shades · Contrast checker →