#C4E0F7 · #D6E1C2
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 97/100 (triadic) · Distinguishable 54/100 (somewhat similar) · Match 37/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Powder Blue and Security are a clear pair (ΔE 29). They have distinctly different hues (126° apart) and their lightness is similar, so they read as two same-weight colours.
Powder Blue text on Security: 1.00:1 (Fail); Security text on Powder Blue: 1.00:1 (Fail). Neither meets AA at body size — nudging one color to #4C6478 clears it.
Triadic — triadic — a recognised, balanced pairing (harmony 97/100). 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 #4C6478 clears AA.
Their CIE76 ΔE is about 29 — a clear pair.
clearly different colours (ΔE 29).
Explore each color: Powder Blue #C4E0F7 · Security #D6E1C2 · Shades: Powder Blue shades · Security shades · Contrast checker →