Little Greene Joanna is a soft, creamy off-white with a gentle warmth that reads beautifully in north-facing rooms. If you love the colour but not the price, the good news is there's a genuinely indistinguishable match.
Dulux Cameo Silk 3 is the standout. At ΔE 0.8 from Joanna, that's an *imperceptible* difference — the human eye can't reliably tell them apart on a finished wall. It carries an LRV of 81.3, so it bounces light around the room just as Joanna does. For a fraction of the cost, this is the obvious swap, and Dulux's Trade Vinyl Matt or Heritage finishes hold up well day to day.
If you want a second option, Crown Woven Calico comes in at ΔE 1.1 with an LRV of 84.2 — a touch brighter and cleaner, which can suit a room that's already a bit dim. Still well inside the "very close" band.
And if you fancy something with a bit of eco credentials and a slicker buying experience, COAT Pampas sits at ΔE 1.2 (LRV 78.8). It's marginally deeper than Joanna, which actually helps if you want a hint more body in the colour. COAT's water-based formula is low-VOC and self-priming on previously painted walls.
The "but what about" question I always get: *won't the finish let it down?* Honestly, no. The colour match is the hard part, and these are sorted. Where Little Greene earns its premium is the depth of pigment and the matt's chalky richness — lovely, but not something you'll mourn in a hallway or bedroom where Cameo Silk 3 does the job for less.
Practical advice: buy a tester of whichever you choose and paint two coats onto a bit of lining paper, then move it around the room across the day. Joanna and its matches all shift with the light — they'll look creamier in the evening and crisper at midday. Live with it for 48 hours before you commit. Get that right and nobody will ever know you didn't pay full whack.