That pocket square has a bold red plaid with white (and a touch of dark/navy), so it really pops. Here are suit colors that’ll make it look intentional—not loud:
Best matches (can’t miss):
Navy blue – Classic and sharp. The red really stands out here.
Charcoal gray – Clean, modern, and lets the pocket square be the star.
Medium gray – A bit lighter, still very balanced and stylish.
Also works well:
Black – Sleek and dressy; great for evening events.
Dark brown or chocolate – Rich and underrated combo with red tones.
Deep burgundy / wine – If you want a bold, fashion-forward look (keep the rest simple).
I’d avoid:
Bright blue or light tan suits (they clash with the depth of the red)
Loud patterns in the suit (the pocket square already has enough going on)
Quick styling tip:
Pair it with a white shirt and a solid tie (navy, charcoal, or burgundy). Let the pocket square do the talking.