Why do we use light blue in lodge?

Blue serves as the distinctive color of the symbolic degrees because it represents universal friendship and benevolence 1. As the color of the vault of heaven spanning the entire globe, it reminds the Mason that brotherly affection and charity should be equally extensive in the breast of every brother 1. Carl H. Claudy describes the moral teachings governing these relationships as a "broad and beautiful band of blue... the true blue of brotherhood" 2.

Albert C. Mackey notes that this association builds upon ancient religious symbolism 1. In Hebrew tradition, blue (tekelet) was used for the veils of the tabernacle and the robe of the high priest's ephod, drawing on a root word signifying perfection—a term historically synonymous with initiation into sacred mysteries 1. Mackey also highlights that Druids viewed blue as the emblem of truth, while Egyptians, Chinese, and Hindus used celestial blue to symbolize divinity and wisdom 1. Medieval Christians similarly regarded azure as a symbol of immortality, eternal truth, and fidelity 1.

In administrative history, John Heron Lepper and Philip Crossle argued that blue was introduced into symbolic clothing through early eighteenth-century Irish practice 1. They suggested that the combination of yellow and sky-blue worn by lodge officers originally symbolized the compasses, where a yellow jacket represented the body and blue breeches represented the steel points 1. From these early usages, the symbolic degrees, their meeting places, and their Master Masons acquired the enduring titles of Blue Masonry, the Blue Lodge, and Blue Degrees 1.