Thinking of Arsenic but weighing up alternatives? This light green from Farrow & Ball has several close cousins across the UK ranges. PaintDial’s closest match from another UK brand is Key Largo by Johnstone's (very close), with every other close match ranked below.
Key Largo by Johnstone's is the closest match from any other brand (very close) — though it’s darker (about 3 LRV points). It’s also the best-value tier of the close matches — unusual, as the nearest match and the best-value one usually differ. No other brand gets within a near-identical match of Arsenic — it’s one of the more distinctive colours in the library, so expect a visible difference whichever you pick. LRV is estimated from each brand’s swatch, so order testers before committing.
Below is every genuinely close match to Arsenic 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 Arsenic colour page.
The nearest Dulux colour is Soft Fauna 3 (close). It won’t be pixel-perfect, so order a tester before committing.
Of the close matches, Key Largo 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 Arsenic colour page →