Green represents growth and Islam, white represents honesty and peace, and red represents bravery and martyrdom. The emblem is a stylized rendering of the word 'Allah'. The Takbir ('Allahu Akbar') is written 22 times along the inner edges of the green and red bands.
History
Adopted on July 29, 1980, following the Islamic Revolution, replacing the previous flag which featured the Lion and Sun emblem of the Shah.
Construction
A 4:7 ratio. A horizontal tricolor with the emblem centered and Kufic script running along the borders of the white stripe.