Burlington Arcade No.216 has a cool, slightly inky character, and the trick is knowing whether to lean into that or warm it up. Both work — they just give you very different rooms.
For drama, drench it. Walls, woodwork and ceiling all in Burlington Arcade gives you the strongest, most enveloping reading. This is the move for a study, snug or dining room where you want the colour to wrap around you. No fighting it with contrasting trim — let it do the work.
For a softer scheme, pair it with a warm off-white on trim. Because Burlington Arcade runs cool, you want warmth alongside it rather than another cool grey, which would make the whole thing feel clinical. Farrow & Ball Au Lait (LRV 80) is a lovely creamy choice that takes the chill off beautifully. Paper III from Paint & Paper Library (LRV 75.3) is the slightly crisper alternative if you want a touch more brightness on the woodwork.
For accents, go deep or go plaster. A soft plaster pink lifts the cool tones gorgeously — think a single feature wall or soft furnishings. At the other end, a deep oxblood adds richness and gravitas: Mylands Cigar BH.20 (LRV 11.8) is the natural partner here, keeping you in the same brand family and grounding the scheme. If you want a punchier pink accent, Dulux Fuchsia Falls 2 (LRV 29.8) brings genuine energy.
Ground the whole thing with natural materials — smoked oak flooring and aged pewter or brushed-nickel hardware sit beautifully against this colour. Brass works too but reads warmer; pewter keeps it sharp.
My honest advice: order samples and paint them large, because a cool shade like this shifts noticeably between a north-facing room (where it'll feel properly moody) and a south-facing one (where it lifts and brightens). Live with it across a full day before you commit.