#9C4FD8 · #AE6A00
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 100/100 (triadic) · 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.
Indigo and Copper are very different (ΔE 122). They have distinctly different hues (123° apart) and their lightness is different, giving a clear light/dark split.
Indigo text on Copper: 1.07:1 (Fail); Copper text on Indigo: 1.07:1 (Fail). Neither meets AA at body size — nudging one color to #19002D clears it.
Triadic — triadic — 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 1.1:1, below the 4.5:1 minimum. Nudging one colour to #19002D clears AA.
Their CIE76 ΔE is about 122 — very different.
clearly different colours (ΔE 122).
Explore each color: Indigo #9C4FD8 · Copper #AE6A00 · Shades: Indigo shades · Copper shades · Contrast checker →