When pairing sea blue colored pants, there are several shirt colors that can complement and enhance the overall look. Here are a few options:

1. White: A classic white shirt is a versatile choice that works well with sea blue pants. It creates a clean and crisp look while allowing the pants to stand out.
2. Light Blue: Opting for a lighter shade of blue in your shirt can create a cohesive and coordinated appearance. Light blue and sea blue complement each other nicely, creating a harmonious ensemble.
3. Navy Blue: If you prefer a more contrasting look, a navy blue shirt can provide a sophisticated combination. The darker tone adds depth and creates a stylish contrast against the sea blue pants.