How does Fathom blue (No.18 C 39) by BS 4800 compare with Crown’s closest paints? The nearest match by perceptual distance is Crown Endeavour® (ΔE 2.3, “near-identical”). 1 more Crown colour sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. Prices for these 2 Crown paints range from £8.20 to £13.20 per litre.
BS 4800 Fathom blue vs Crown
2 closest Crown 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 |
|---|---|---|---|---|---|
| Endeavour® | — | 2.3 | near-identical | £8.20 | £1.37 |
| Genuine® | — | 3.6 | very close | £13.20 | £2.20 |