I'm not matchy-matchy but if it's not a neutral color accessory I probably wouldn't use it... for example I recently bought an orange mini skinny but do not think I will use it in my berry hobo... but then again like my sis says "it's inside ur bag- who's gonna know u don't match!"
Not that I'm saying you or your sister are wrong per se, but people do see it. Everytime you go to the store you have to pull out the wallet or wristlet, or whatever to pay, and therefore it is being seen you are mis-matched.
However that doesn't mean you have to match. Some people don't care. I'd looove to match all my stuff, but the
Coach wallets are just too dang expensive considering I could get another purse for the same cost, or a nicer purse for the cost of two.
I have one Hamptons Stripe Envelope wallet in doe to match my Hamptons Stripe Carryall exactly...but if I could do it over again I wouldn't have bought the wallet. But I use it with all my bags...black, raisin, brown.
I really wanted a wristlet to match my bleeker tote in black, but it's darn hard to find the right wristlet that is large enough and has the same color stitching and hardware. I'd rather bet TOTALLY off on matching, than have something be kinda off and sorta matching (I know, sounds totally weird, but that's just me)