How does Sulphur Springs 3 by Dulux compare with RAL Classic’s closest paints? The nearest match is RAL Classic Melon yellow (ΔE 1.6, “near-identical”). 1 more RAL Classic colour sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall.
Dulux Sulphur Springs 3 vs RAL Classic
4 closest RAL Classic 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 |
|---|---|---|---|---|---|
| Melon yellow | No.1028 | 1.6 | near-identical | — | — |
| Dahlia yellow | No.1033 | 2.7 | near-identical | — | — |
| Maize yellow | No.1006 | 4.4 | very close | — | — |
| Sun yellow | No.1037 | 5.1 | close | — | — |