Light Blue Stained Glass is a dyed variant of glass that maintains transparency while displaying a light blue tint. It is crafted by combining glass blocks with light blue dye. Like regular glass, Light Blue Stained Glass must be broken with a Silk Touch-enchanted tool to drop itself; otherwise, it shatters. Mobs cannot spawn on it, and they perceive it as opaque, even though players can see through it.

Light Blue Stained Glass can be used to alter the color of beacon beams by averaging its RGB color values with other stained glass blocks stacked above the beacon. Additionally, it serves as a crafting ingredient for Light Blue Stained Glass panes.