#5E7EF2 · #A78300
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 100/100 (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.
Vivid Blue and Dark Goldenrod are very different (ΔE 125). They have near-opposite hues (180° apart) and their lightness is different, giving a clear light/dark split.
Vivid Blue text on Dark Goldenrod: 1.03:1 (Fail); Dark Goldenrod text on Vivid Blue: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #0F017A 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 1.0:1, below the 4.5:1 minimum. Nudging one colour to #0F017A clears AA.
Their CIE76 ΔE is about 125 — very different.
clearly different colours (ΔE 125).
Explore each color: Vivid Blue #5E7EF2 · Dark Goldenrod #A78300 · Shades: Vivid Blue shades · Dark Goldenrod shades · Contrast checker →