The central area of a rug inside its borders, where the medallion, allover pattern, garden panels or other main design are set. Rug descriptions commonly name the field color, meaning the background shade of that area (for example dark red, dark blue, cream or camel), as distinct from the highlight colors used for motifs and accents. In an open-field design most of the field is left as one background color, with widely spaced motifs and a large share of empty space.
A layout in which most of the field is left open, usually one plain ground color with only a few flowers in curving lines and sometimes a medallion. It comes in three forms: a single central medallion, two or more repeating medallions, or an allover scatter of motifs with generous space between them. The composition is said to echo the cover of a Quran and is found mainly in city-style Persian rugs such as Tabriz, Kashan, Sarouk, Hamadan, and Kerman, and also in Bijar rugs. With so little pattern to hide behind, inconsistencies in the wool or dyeing show plainly.