How does Fathom blue (No.18 C 39) by BS 4800 compare with Edward Bulmer’s closest paints? The nearest match is Edward Bulmer Indigo (ΔE 2.7, “near-identical”). These 3 Edward Bulmer paints are all priced at £26.40 per litre.

BS 4800 Fathom blue (No.18 C 39)

Edward Bulmer Indigo near-identical — ΔE 2.7 £26.40/L

BS 4800 Fathom blue vs Edward Bulmer

3 closest Edward Bulmer 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
Indigo	—	2.7	near-identical	£26.40	£4.40
Delft	—	4.0	very close	£26.40	£4.40
Cyanotype	—	7.9	close	£26.40	£4.40

Compare Fathom blue with another brand

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

← Back to Fathom blue by BS 4800