Blue Seduction 1 vs Royal Regatta 3
Blue Seduction 1 and Royal Regatta 3 are both Dulux blues. The gap between them is ΔE 4.6 — “very close”. Blue Seduction 1 is the lighter of the two. Both cost about £10.20 per litre.
| Blue Seduction 1 | Royal Regatta 3 | |
|---|---|---|
| Hex | #4280B6 | #2676AD |
| Lightness (L*) | 52 | 47 |
| Price / litre | £10.20 | £10.20 |
More Dulux comparisons
Looking across brands instead? See Blue Seduction 1’s cross-brand matches and cheaper alternatives, or Royal Regatta 3’s.