How does Cosmic Grey (No.SAP1032) by Sanderson compare with BS 4800’s closest paints? The nearest match is BS 4800 Ash grey (ΔE 2.3, “near-identical”). 2 more BS 4800 colours sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall.

Sanderson Cosmic Grey (No.SAP1032) £20.00/L

BS 4800 Ash grey (No.00 A 01) near-identical — ΔE 2.3

Sanderson Cosmic Grey vs BS 4800

3 closest BS 4800 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
Ash grey	No.00 A 01	2.3	near-identical	—	—
Pearl grey	No.22 B 15	2.3	near-identical	—	—
Ice blue	No.18 C 31	3.8	very close	—	—

Compare Cosmic Grey with another brand

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

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