When selecting a shirt to match light blue jeans, consider the occasion and your personal style. For a casual look, opt for a white, gray, or black T-shirt. For a more polished appearance, try a button-down shirt in white, blue, or a subtle check pattern. Chambray shirts offer a lightweight and versatile option that can be dressed up or down depending on the accessories you choose. To complement your ensemble, consider incorporating accessories such as a belt, scarf, or jewelry in shades that harmonize with your chosen shirt color.