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How does Cooper's Earth (No.JB.05) by Mylands compare with Johnstone's’s closest paints? The nearest match is Johnstone's Iris Mauve (ΔE 1.1, “near-identical”). 4 more Johnstone's colours sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. Prices for these 5 Johnstone's paints range from £7.53 to £13.37 per litre, against Mylands Cooper's Earth at £27.20/L.

Mylands Cooper's Earth (No.JB.05) £27.20/L
Johnstone's Iris Mauve near-identical — ΔE 1.1 £13.37/L

Mylands Cooper's Earth vs Johnstone's

5 closest Johnstone's 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
Iris Mauve — 1.1 near-identical £13.37 £2.23
Awakening — 2.4 near-identical £13.37 £2.23
Coffee Cream — 3.3 very close £7.53 £1.26
Tawny Mushroom — 3.4 very close £13.37 £2.23
Just Rosey — 3.5 very close £13.37 £2.23

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