Thuluth

Thuluth (ثلث) is a classical Arabic script developed during the Abbasid era, when Arabic calligraphy became more systematized and governed by proportion. It is closely associated with the calligraphic tradition of the "six scripts," and is often linked to Ibn Muqla's proportional approach, later refined by masters such as Yaqut al-Mustaʿsimi.

Visual Character

Visually, Thuluth is known for its tall verticals, sweeping curves, and balanced stroke contrast, giving it a strong sense of rhythm and monumentality. Because of its clarity at large sizes and its ability to form elegant, architectural compositions, it has been widely used for Qur'anic headings, inscriptions, and mosque decoration, where the script is meant to carry both meaning and presence.