How does Southwold Blue (No.SAP0136) by Sanderson compare with Dulux’s closest paints? The nearest match by perceptual distance is Dulux Bright Skies (ΔE 1.3, “near-identical”). 2 more Dulux colours sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. These 3 Dulux paints are all priced at £10.20 per litre, against Sanderson Southwold Blue at £19.60/L.
Sanderson Southwold Blue vs Dulux
3 closest Dulux 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 |
|---|---|---|---|---|---|
| Bright Skies | — | 1.3 | near-identical | £10.20 | £1.57 |
| Faded Sky | — | 1.3 | near-identical | £10.20 | £1.57 |
| Frosted Lake | — | 1.9 | near-identical | £10.20 | £1.57 |