How does St James (No.No.40) by Mylands compare with BS 4800’s closest paints? The nearest match is BS 4800 Sea foam (ΔE 2.8, “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.

Mylands St James (No.No.40) £27.20/L

BS 4800 Sea foam (No.12 B 15) near-identical — ΔE 2.8

Mylands St James 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
Sea foam	No.12 B 15	2.8	near-identical	—	—
Creamy white	No.10 B 15	3.4	very close	—	—
Magnolia	No.08 B 15	3.9	very close	—	—

Compare St James with another brand

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

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