How does Window grey (No.7040) by RAL Classic compare with Zoffany’s closest paints? The nearest match by perceptual distance is Zoffany Double Quartz Grey (ΔE 2.1, “near-identical”). 1 more Zoffany colour sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. These 2 Zoffany paints are all priced at £22.00 per litre.
RAL Classic Window grey vs Zoffany
2 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 |
|---|---|---|---|---|---|
| Double Quartz Grey | No.ZOP0030 | 2.1 | near-identical | £22.00 | — |
| Shetland | No.ZOP0127 | 3.5 | very close | £22.00 | — |