#858000 · #A47000
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 83/100 (analogous) · Distinguishable 25/100 (hard to tell apart) · Match 48/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Olive and Copper are a clear pair (ΔE 24). They have closely related hues (17° apart) and their lightness is similar, so they read as two same-weight colours.
Olive text on Copper: 1.04:1 (Fail); Copper text on Olive: 1.04:1 (Fail). Neither meets AA at body size — nudging one color to #100E00 clears it.
Analogous — analogous — a recognised, balanced pairing (harmony 83/100). 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 #100E00 clears AA.
Their CIE76 ΔE is about 24 — a clear pair.
clearly different colours (ΔE 24).
Explore each color: Olive #858000 · Copper #A47000 · Shades: Olive shades · Copper shades · Contrast checker →