Midnight Iris 3 vs Purple Polka 4
Midnight Iris 3 and Purple Polka 4 are both Dulux blues. The gap between them is ΔE 3.6 — “very close”. Purple Polka 4 is the lighter of the two, and Midnight Iris 3 the warmer. Both cost about £14.40 per litre.
Now inside your AI toolConnect free →| Midnight Iris 3 | Purple Polka 4 | |
|---|---|---|
| Hex | #B8B9C8 | #BEBACF |
| Lightness (L*) | 75 | 76 |
| Price / litre | £14.40 | £14.40 |
More Dulux comparisons
Looking across brands instead? See Midnight Iris 3’s cross-brand matches and cheaper alternatives, or Purple Polka 4’s.