This vibrant royal blue, white, and black geometric checkerboard pocket square works exceptionally well with structured tailoring. To balance its bold pattern and high-contrast palette, look for solid or subtly textured suit fabrics.
Best Suit Color Pairings: 
Charcoal Grey: This is arguably the best option. The black and dark tones in the pocket square's gradient blend beautifully into a dark grey suit, allowing the electric royal blue to stand out sharply.
Navy Blue: A timeless combination. The royal blue highlights will complement a navy base, while the white diamonds add a crisp, formal touch.
Light Grey / Silver: This creates a fresh, modern, and summer-friendly aesthetic. The light grey jacket mirrors the white and silver gradients in the pocket square's weave.
Black: Ideal for formal evening events or a night out. The black squares anchor the pattern directly to the jacket fabric, making the blue pop in high-contrast fashion.