Seafoam vs Periwinkle — Difference, Contrast & Harmony

Seafoamnearest vs Periwinklenearest

#ACDDA8 · #B4CEFF

Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 79/100 (triadic) · Distinguishable 53/100 (somewhat similar) · Match 0/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.

Readability1Fail

The quick brown fox jumps over the lazy dog.

Fail1.0:1

Harmony79Triadic

Triadic

104° apart

Distinguishable53Somewhat similar

normal

tritanopia

ΔE 55 (18 under CVD)

Match0Different

ΔE 55 — different

How different are Seafoam and Periwinkle?

Seafoam and Periwinkle are very different (ΔE 55). They have distinctly different hues (104° apart) and their lightness is similar, so they read as two same-weight colours.

Can you read one on the other?

Seafoam text on Periwinkle: 1.03:1 (Fail); Periwinkle text on Seafoam: 1.03:1 (Fail). Neither meets AA at body size — nudging one color to #356133 clears it.

Common questions

Do Seafoam and Periwinkle go well together?

Triadic — triadic — a recognised, balanced pairing (harmony 79/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.

Is Seafoam readable as text on Periwinkle?

Not at body size — the best direction is only 1.0:1, below the 4.5:1 minimum. Nudging one colour to #356133 clears AA.

What is the colour difference (ΔE) between Seafoam and Periwinkle?

Their CIE76 ΔE is about 55 — very different.

Are Seafoam and Periwinkle the same colour?

clearly different colours (ΔE 55).

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