#C59700 · #E3822E
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 92/100 (analogous) · Distinguishable 27/100 (hard to tell apart) · Match 40/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Vivid Yellow and Peru are a clear pair (ΔE 27). They have closely related hues (18° apart) and their lightness is similar, so they read as two same-weight colours.
Vivid Yellow text on Peru: 1.04:1 (Fail); Peru text on Vivid Yellow: 1.04:1 (Fail). Neither meets AA at body size — nudging one color to #433000 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 92/100). 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 #433000 clears AA.
Their CIE76 ΔE is about 27 — a clear pair.
clearly different colours (ΔE 27).
Explore each color: Vivid Yellow #C59700 · Peru #E3822E · Shades: Vivid Yellow shades · Peru shades · Contrast checker →