How does Southwold Blue (No.SAP1136) by Sanderson compare with Dulux’s closest paints? The nearest match is Dulux Bright Skies (ΔE 1.3, “near-identical”). 2 more Dulux colours sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. Prices for these 3 Dulux paints range from £10.80 to £14.40 per litre, against Sanderson Southwold Blue at £20.00/L.

Sanderson Southwold Blue (No.SAP1136) £20.00/L

Dulux Bright Skies near-identical — ΔE 1.3 £10.80/L

Sanderson Southwold Blue 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
Bright Skies	—	1.3	near-identical	£10.80	£1.66
Faded Sky	—	1.3	near-identical	£14.40	£2.22
Frosted Lake	—	1.9	near-identical	£14.40	£2.22

Compare Southwold Blue with another brand

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