@Brooklyn Thank you - rust or aubergine could potentially work! (I've officially moved ALL my black clothes to my UK closet)
Ah Karen Millen - if it helps, I consider that style of clothing to be on par with Oasis, BHS, Warehouse, Dorothy Perkins, Wallis, Burton. Those were all UK brands that were a part of the Arcadia Group, which is sadly no more (meaning the AG no longer exists in the UK either - the pandemic affected a lot of the British high street, even on home turf).
I say if it 'helps' because you could likely find such brands online now (I remember seeing many of their clothes on eBay, since it was always a relatively accessible price point). I just bought some Karen Millen trousers & found that my usual UK14 size fits fine in the hips (40") but the waist is loose (30"), which is sadly also normal for me