How does Fathom blue (No.18 C 39) by BS 4800 compare with Dulux Heritage’s closest paints? The nearest match by perceptual distance is Dulux Heritage Midnight Teal (ΔE 2.6, “near-identical”).
BS 4800 Fathom blue vs Dulux Heritage
1 closest Dulux Heritage 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 |
|---|---|---|---|---|---|
| Midnight Teal | No.LRV 11 | 2.6 | near-identical | £10.40 | £1.30 |