#91BCFE · #F79FA0
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 95/100 (split-complementary) · Distinguishable 99/100 (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.
Light Vivid Blue and Light Red are very different (ΔE 59). They have distinctly different hues (143° apart) and their lightness is similar, so they read as two same-weight colours.
Light Vivid Blue text on Light Red: 1.04:1 (Fail); Light Red text on Light Vivid Blue: 1.04:1 (Fail). Neither meets AA at body size — nudging one color to #234881 clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 95/100). 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 #234881 clears AA.
Their CIE76 ΔE is about 59 — very different.
clearly different colours (ΔE 59).
Explore each color: Light Vivid Blue #91BCFE · Light Red #F79FA0 · Shades: Light Vivid Blue shades · Light Red shades · Contrast checker →