Kigali is a properly atmospheric green-teal, and the single best thing you can do with it is drench the room — walls, woodwork and ceiling all the same colour. Stop it half way up a wall and the depth reads as dingy; take it everywhere and it becomes enveloping and grown-up, the kind of colour that makes a dining room or study feel like a proper destination.
Once it's drenched, the room needs lifting and grounding. For the lift, reach for a warm off-white rather than a stark cool one — Sand I from the same Paint & Paper Library range (LRV 95.4) is gorgeous for ceilings, cornicing or adjoining woodwork, and the shared brand DNA means they sit together naturally. If you want a crisper, brighter contrast for trim or a hallway running off the room, Farrow & Ball All White (LRV 92) does the job cleanly.
For the grounding and contrast, this is where Kigali really comes alive. A warm metallic — antique brass especially — plays beautifully against the teal. Echo it in your soft furnishings or a feature piece with a coppery, rusty tone: Dulux Copper Glow (LRV 30.1) is a lovely warm orange-brown that gives you that old-leather-and-rust contrast without fighting the green. And to add real depth — a fire surround, a piece of cabinetry, a bit of bottom-of-the-room weight — Mylands Cigar BH.20 (LRV 11.8) is a smoky brown that reads almost like aged leather.
The "but what about" question I always get: *won't all that dark feel oppressive?* Not if you get the light bouncing — the off-white ceiling and good lamplight (warm bulbs, 2700K) do the heavy lifting. Brass hardware, natural wood and a little texture stop it feeling flat.
Keep the palette tight: Kigali drenched, Sand I or All White to lift, then Copper Glow and Cigar as accents. That's a complete, confident scheme — don't overcomplicate it.