This pocket square features a vibrant swirl pattern with multiple colors (blue, green, yellow, orange, and red) on a black background with a red border. To make it stand out, pair it with solid-colored suits such as black, charcoal gray, or navy blue. These suit colors will complement the bold design and allow the pocket square to be the focal point. For a more adventurous look, a deep green or royal blue suit can also work, echoing the colors in the pattern. Avoid suits with busy patterns to keep the overall look balanced and stylish.