The color green (Arabic: أخضر, romanized: 'akhḍar) holds many profound and traditional associations within Islam, embodying themes of paradise, purity, and prosperity.
[1] [dubious – discuss] Verses from the Qur'an describing reclining on green cushions and garments of fine silk imbue the color with a sense of tranquility and peace.
[citation needed] Green flags were adopted by Shi'ites in the early Islamic period,[8] although the most common Shi'a color was white, in symbolic opposition to Abbasid black.
[9][10] Thus in 817, when the Abbasid caliph al-Ma'mun adopted the Alid Ali al-Ridha as his heir-apparent, he also changed the dynastic color from black to green.
[11][dubious – discuss] Various national flags use green as a symbol of Islam, including Algeria, Azerbaijan, Comoros, Mauritania, Pakistan, Bangladesh, Saudi Arabia, Sri Lanka, and Tajikistan.