Sultanabad Rugs have three general motifs that characterize the style. One is the Herati, eminent by a flower within a diamond that is flanked by curving leaves, which sometimes resembles a fish. Another is the Sarouk, named for a village in the Arak area. Its 19th century rugs, known as Farahan for the principal designer of the period, featured central medallions. A third motif of Sultanabad rugs, the Semovar, features recurring rather than central medallions. conventionally, dark reds and blues are common colors, highlighted by soft green, ivory, and cold. The woven foundation warp and weft threads are cotton. The asymmetrical knots are exclusively cotton. The asymmetrical knots forming the pile are wool, spun from the weaver's own sheep.