allpaintcolours.co.ukHow does Duchess blue (No.20 C 40) by BS 4800 compare with Zoffany’s closest paints? The nearest match is Zoffany Como Blue (ΔE 4.0, “very close”). These 3 Zoffany paints are all priced at £23.20 per litre.
BS 4800 Duchess blue vs Zoffany
Now inside your AI toolConnect free →3 closest Zoffany matches 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 |
|---|---|---|---|---|---|
| Como Blue | No.ZOP1019 | 4.0 | very close | £23.20 | — |
| Ink | No.ZOP1068 | 4.9 | very close | £23.20 | — |
| Serpentine | No.ZOP1124 | 7.2 | close | £23.20 | — |
Compare Duchess blue with another brand
Full BS 4800 → Zoffany conversion chart — every colour's nearest equivalent