Chic Shadow is a lovely warm grey, but it's got a definite olive bias running through it — and that's the thing that catches people out. Get the partners right and it reads sophisticated and grounded; get them wrong and it turns muddy.
Woodwork first, because this is where it lives or dies. Never put a stark brilliant white next to Chic Shadow. The cold blue-white throws the olive into sharp relief and the whole wall goes murky. You want a warm off-white instead — something with a touch of cream or stone in it so the woodwork sits in harmony rather than fighting the green. That warmth is what keeps Chic Shadow feeling intentional.
For a soft, airy companion above a picture rail or on a ceiling, Dulux Almost Pistachio (LRV 80.3) is a cracking match — it picks up the olive note and lightens it without going minty, so the scheme feels considered rather than accidental.
When you want to anchor things downward — lower panelling, a dado, a built-in — go deeper and warmer. Mylands Cigar BH.20 (LRV 11.8) is a rich tobacco-brown that grounds Chic Shadow beautifully and feels properly grown-up. If you'd rather a moodier, more dramatic anchor, Paint & Paper Library Blue Blood (LRV 16.4) gives you depth with a cooler edge that still flatters the grey.
The "but what about metals?" question: keep them in the aged brass or bronze family. Polished chrome and bright nickel will look out of step with that warm olive undertone — aged brass, antique bronze and oil-rubbed finishes all sing alongside it.
Practical advice: paint a decent A2 sample patch and live with it for a couple of days, checking it in morning and evening light. The olive shifts noticeably depending on the light and what's reflecting into the room, so don't commit off a tester pot dab. Sort the warm off-white trim and you're most of the way there.