Indigo vs Raw Sienna — Difference, Contrast & Harmony

Indigonearest vs Raw Siennanearest

#A28CD9 · #D08852

Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 100/100 (triadic) · Distinguishable 95/100 (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.

Readability0Fail

The quick brown fox jumps over the lazy dog.

Fail1.0:1

Harmony100Triadic

Triadic

129° apart

Distinguishable95Easy to tell apart

normal

tritanopia

ΔE 76 (54 under CVD)

Match0Different

ΔE 76 — different

How different are Indigo and Raw Sienna?

Indigo and Raw Sienna are very different (ΔE 76). They have distinctly different hues (129° apart) and their lightness is similar, so they read as two same-weight colours.

Can you read one on the other?

Indigo text on Raw Sienna: 1.00:1 (Fail); Raw Sienna text on Indigo: 1.00:1 (Fail). Neither meets AA at body size — nudging one color to #3C2366 clears it.

Common questions

Do Indigo and Raw Sienna go well together?

Triadic — triadic — a recognised, balanced pairing (harmony 100/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.

Is Indigo readable as text on Raw Sienna?

Not at body size — the best direction is only 1.0:1, below the 4.5:1 minimum. Nudging one colour to #3C2366 clears AA.

What is the colour difference (ΔE) between Indigo and Raw Sienna?

Their CIE76 ΔE is about 76 — very different.

Are Indigo and Raw Sienna the same colour?

clearly different colours (ΔE 76).

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