Strong White is one of Farrow & Ball's cooler whites — there's a subtle green-grey cast running through it, and that's the key to using it well. It's a cracking ceiling and woodwork white when you want a clean, slightly architectural feel rather than a soft creamy one.
Its best job is as the cool counterpoint to a stronger wall colour. Paint the walls in a deep greyed blue, a sage green or a soft charcoal and let Strong White do the trim and ceiling — the contrast reads crisp and considered. Paint & Paper Library Blue Blood (LRV 16.4) is a lovely deep choice for walls with Strong White framing it, and Mylands Cigar BH.20 (LRV 11.8) gives you a darker, moodier counterpoint that Strong White sets off beautifully. For a softer, fresher scheme, Dulux Almost Pistachio (LRV 80.3) brings just enough cool green to harmonise with the white's undertone rather than fight it.
The trap most people fall into: pairing Strong White with warm-toned companions — think honeyed taupes, creamy yellows or pink-based neutrals. Do that and the green cast suddenly jumps out and the white looks faintly dirty. Keep its companions cool or genuinely neutral and it stays clean.
The other thing to know — if you're colour-drenching a whole room in Strong White on its own, it can read flat and a touch cold. You need texture and cool-toned materials to rescue it: think limewash plaster, pale oak, brushed steel, linen. Without that texture it's a bit of a blank slate.
Practical advice: always sample Strong White against your chosen wall colour and view it morning and evening before committing. In a north-facing room the green can lean colder still, so if that worries you, a warmer neutral white might serve you better — but as a sharp partner to deep blues and greens, Strong White is hard to beat.