How does Duchess blue (No.20 C 40) by BS 4800 compare with Craig & Rose’s closest paints? The nearest match by perceptual distance is Craig & Rose Lido Blue (ΔE 3.6, “very close”).
BS 4800 Duchess blue vs Craig & Rose
1 closest Craig & Rose 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 |
|---|---|---|---|---|---|
| Lido Blue | — | 3.6 | very close | £18.00 | £2.57 |