How does Royal Regatta 5 by Dulux compare with BS 4800’s closest paints? The nearest match is BS 4800 Cornflower blue (ΔE 2.2, “near-identical”).
Dulux Royal Regatta 5 vs BS 4800
1 closest BS 4800 match ranked by ΔE
ΔE (CIEDE2000) is a perceptual distance metric — lower means a closer match. Matches under ΔE 2 are typically indistinguishable; ΔE 2–4 looks “the same” once dry on a wall; ΔE 4–6 is noticeable side-by-side. Always view a sample pot before committing — screen colours and lighting vary.
| Colour | Number | ΔE | Match quality | Price/L | Price/m2 |
|---|---|---|---|---|---|
| Cornflower blue | No.20 E 51 | 2.2 | near-identical | — | — |