#016367 · #1E6450
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 89/100 (analogous) · Distinguishable 30/100 (hard to tell apart) · Match 67/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
ReallyTeal and Dark Teal are a clear pair (ΔE 15). They have closely related hues (19° apart) and their lightness is similar, so they read as two same-weight colours.
ReallyTeal text on Dark Teal: 1.00:1 (Fail); Dark Teal text on ReallyTeal: 1.00:1 (Fail). Neither meets AA at body size — nudging one color to #8EDDE0 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 89/100). 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 #8EDDE0 clears AA.
Their CIE76 ΔE is about 15 — a clear pair.
clearly different colours (ΔE 15).
Explore each color: ReallyTeal #016367 · Dark Teal #1E6450 · Shades: ReallyTeal shades · Dark Teal shades · Contrast checker →