The flag of Israel (Hebrew: דגל ישראל Degel Yisra'el; Arabic: علم إسرائيل ʿAlam Israʼīl) was adopted on 28 October 1948, five months after the establishment of the State of Israel. It depicts a blue hexagram on a white background, between two horizontal blue stripes. The Israeli flag legislation states that the official measurements are 160 × 220 cm. Therefore, the official proportions are 8:11. Variants can be found at a wide range of proportions, with 2:3 being common.

The blue colour is described as "dark sky-blue", and varies from flag to flag, ranging from a hue of pure blue, sometimes shaded almost as dark as navy blue, to hues about 75% toward pure cyan and shades as light as very light blue.[2] An early version of the flag was displayed in 1885 at a procession marking the third anniversary of Rishon LeZion. A similar version was designed for the Zionist Movement in 1891. The basic design recalls the Tallit (טַלִּית), the Jewish prayer shawl, which is white with black or blue stripes. The symbol in the center represents the Star of David (Magen David, מָגֵן דָּוִד), a Jewish symbol dating from late medieval Prague, which was adopted by the First Zionist Congress in 1897.