Breton Blue vs Royal Regatta 1
Breton Blue and Royal Regatta 1 are both Dulux blues. The gap between them is ΔE 5.8 — “close”. Breton Blue is the lighter of the two. Both cost about £10.20 per litre.
| Breton Blue | Royal Regatta 1 | |
|---|---|---|
| Hex | #425465 | #274C68 |
| Lightness (L*) | 35 | 31 |
| Price / litre | £10.20 | £10.20 |
More Dulux comparisons
Looking across brands instead? See Breton Blue’s cross-brand matches and cheaper alternatives, or Royal Regatta 1’s.