Since this pocket square features a bold, high-contrast pattern of lime green and vibrant pink swirls, it should be paired with suits that provide a solid background to let the colors pop without clashing. 
Navy Blue: This is the most versatile choice. The deep blue acts as a neutral base that complements both the green and pink tones.
Charcoal or Dark Grey: A dark grey suit provides a sophisticated, modern backdrop that grounds the bright neon-like colors of the square.
Tan or Light Khaki: For a summer or daytime event, a lighter neutral suit works well, especially if you want to emphasize the bright green "spring" feel of the accessory.
Avoid Matching Perfectly: Do not wear a tie that is the exact same pattern or color; instead, pick one color from the square (like the pink) for your tie in a different pattern or solid color.Suit Pattern: Stick to solid-colored suits. Pairing this "swirl" pattern with a pinstripe or checkered suit can create too much visual