#C49700 · #FFFFFF
Four independent scores (read the one that fits your goal): Readability 34/100 (fail) · Harmony 82/100 (analogous) · 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 Yellow and White are very different (ΔE 78). They have distinctly different hues (46° apart) and their lightness is different, giving a clear light/dark split.
Vivid Yellow text on White: 2.70:1 (Fail); White text on Vivid Yellow: 2.70:1 (Fail). Neither meets AA at body size — nudging one color to #947200 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 82/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 2.7:1, below the 4.5:1 minimum. Nudging one colour to #947200 clears AA.
Their CIE76 ΔE is about 78 — very different.
clearly different colours (ΔE 78).
Explore each color: Vivid Yellow #C49700 · White #FFFFFF · Shades: Vivid Yellow shades · White shades · Contrast checker →