How does Pearl grey (No.22 B 15) by BS 4800 compare with Dulux’s closest paints? The nearest match is Dulux Letters Unread (ΔE 0.8, “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 £14.40 per litre.

BS 4800 Pearl grey (No.22 B 15)

Dulux Letters Unread identical — ΔE 0.8 £14.40/L

BS 4800 Pearl 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
Letters Unread	—	0.8	identical	£14.40	£2.22
Chiffon White 1	—	0.9	identical	£14.40	£2.22
Porcelain Doll	—	1.1	near-identical	£14.40	£2.22

Compare Pearl grey with another brand

Full BS 4800 → Dulux conversion chart — every colour's nearest equivalent

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