Bathroom Tiles Shop In Gangabai Ghat Road , Nagpur. During the Safavid period, mosaic ornaments were often replaced by a Haft-rang (seven colors) technique. Pictures were painted on plain rectangle tiles, glazed and fired afterwards. Besides economic reasons, the seven colors method gave more freedom to artists and was less time-consuming. It was popular until the Qajar period, when the palette of colors was extended by yellow and orange.[6] The seven colors of Haft Rang tiles were usually black, white, ultramarine, turquoise, red, yellow and fawn. The Persianate tradition continued and spread to much of the Islamic world, notably the İznik pottery of Turkey under the Ottoman Empire in the 16th and 17th centuries. Palaces, public buildings, mosques and türbe mausoleums were heavily decorated with large brightly colored patterns, typically with floral motifs, and friezes of astonishing complexity, including floral motifs and calligraphy as well as geometric patterns.