How does Pearl dark grey (No.9023) by RAL Classic compare with Dulux’s closest paints? The nearest match is Dulux Urban Obsession (ΔE 0.8, “identical”). 1 more Dulux colour 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 £14.40 per litre.

RAL Classic Pearl dark grey (No.9023)

Dulux Urban Obsession identical — ΔE 0.8 £14.40/L

RAL Classic Pearl dark grey 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
Urban Obsession	—	0.8	identical	£14.40	£2.22
Grey	—	2.2	near-identical	£14.40	£2.22
Wistful Mauve	—	4.5	very close	£14.40	£2.22

Compare Pearl dark grey with another brand

Full RAL Classic → Dulux conversion chart — every colour's nearest equivalent

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