What is the name of the tile on the wooden beam in the courtyard corridor?

Qingwa. The color of blue tiles is not cyan, but dark blue and gray blue. The size of ceramic tile is generally 200-250 mm long, 0/50-200 mm wide and 6 mm thick. They are used on the wooden beams of the courtyard corridor, and the blue tiles are arranged in a linear and arc way, which serves as the boundary between different elements and presents a Zen atmosphere.