How does Fathom blue (No.18 C 39) by BS 4800 compare with Crown’s closest paints? The nearest match is Crown Endeavour® (ΔE 2.3, “near-identical”). 1 more Crown colour sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. Prices for these 3 Crown paints range from £8.80 to £14.00 per litre.

BS 4800 Fathom blue (No.18 C 39)

Crown Endeavour® near-identical — ΔE 2.3 £8.80/L

BS 4800 Fathom blue vs Crown

3 closest Crown 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
Endeavour®	—	2.3	near-identical	£8.80	£1.47
Genuine®	—	3.6	very close	£14.00	£2.33
Printworks®	—	5.8	close	£14.00	£2.33

Compare Fathom blue with another brand

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

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