#74B9FF · #F791A2
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 78/100 (split-complementary) · Distinguishable 100/100 (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 Vivid Red are very different (ΔE 65). They have distinctly different hues (140° apart) and their lightness is similar, so they read as two same-weight colours.
Light Vivid Blue text on Light Vivid Red: 1.06:1 (Fail); Light Vivid Red text on Light Vivid Blue: 1.06:1 (Fail). Neither meets AA at body size — nudging one color to #00447B clears it.
Split-complementary — split-complementary — a recognised, balanced pairing (harmony 78/100). 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 #00447B clears AA.
Their CIE76 ΔE is about 65 — very different.
clearly different colours (ΔE 65).
Explore each color: Light Vivid Blue #74B9FF · Light Vivid Red #F791A2 · Shades: Light Vivid Blue shades · Light Vivid Red shades · Contrast checker →