Flag of the Soviet Union building of communism. The flag's design was legislated in 1955, which gave a clear way to define and create the flag. This resulted in a change of the hammer's handle length and the shape of the sickle. The adopted statute stated that: The final design of the flag was adopted in 1980. The design was kept the same except that the background colour was changed. The colour was brightened from a near-burgundy crimson to a light to medium red. That flag remained the national flag of the Soviet Union up until late 1991, when a tricolour was formally adopted by
Flag of Poland as the official shades of both colours expressed as coordinates in the CIE xyY (CIE 1931) colour space with the tolerated colour differences (ΔE) specified in the CIE 1976 ("L"*, "u"*, "v"*) colour space (CIELUV). The Constitution contains no mention of a national flag. Instead, the flag is defined by the Coat of Arms Act which specifies two variants of the national flag: the national flag of the Republic of Poland ("flaga państwowa Rzeczypospolitej Polskiej") and the national flag with coat of arms of the Republic of Poland ("flaga państwowa z godłem Rzeczypospolitej Polskiej"). Both flags are defined in Article