This  pocket square has a bold, elegant look with the red-on-black polka dot pattern. 
These suit colors would pair especially well with it
:
Black suit — the cleanest and sharpest match; gives a sleek formal look.
Charcoal gray suit — sophisticated and balances the bright red nicely.
Medium gray suit — modern and stylish without overpowering the pocket square.
Deep burgundy/wine suit — fashionable and coordinated if you want a standout look.
Dark navy suit — adds contrast while still letting the red pop.
White dinner jacket with black pants — very upscale evening style.
For shirts and ties:
Crisp white shirt works best.
Black shirt gives a dramatic modern vibe.
Tie options: solid black, burgundy, charcoal, or no tie for a stylish casual-formal look.