Cook's Blue is one of Farrow & Ball’s mid-toned blues that people often look to match from another brand. PaintDial’s closest match from another UK brand is Atlantic Surf 3 by Dulux (near-identical), with every other close match ranked below.
Atlantic Surf 3 by Dulux is the closest match from any other brand (near-identical) — and it holds Cook's Blue’s lightness, warmth and saturation alike. The closest value-tier option is Blue Promise by Johnstone's (very close), lighter (about 4 LRV points). Only one of the 8 other brands manages a near-identical match, which makes Cook's Blue fairly distinctive. LRV is estimated from each brand’s swatch, so order testers before committing.
Below is every genuinely close match to Cook's Blue from the other eight brands — ranked purely by closeness, so where one brand has several near-misses, they all appear. For the single best match per brand, see the Cook's Blue colour page.
The nearest Dulux colour is Atlantic Surf 3 (near-identical). It won’t be pixel-perfect, so order a tester before committing.
Of the close matches, Blue Promise by Johnstone's is the best-value option (value, very close).
The list shows every genuinely close match from other brands, ranked nearest-first by perceptual colour difference — including several from one brand where they’re all close. Screens differ from paint on a wall, so treat these as a shortlist and always order tester pots.
Search any paint name in the tool to see its closest matches across every UK brand.
See the full Cook's Blue colour page →