The national colours of Ukraine are usually identified as the combination of blue and gold in that order. These colours are the same as in the flag of Ukraine. The roots of Ukrainian national colours come from before Christian times when yellow and blue prevailed in traditional ceremonies, reflecting fire and water. The most solid proof of yellow and blue colours could be traced as far as the Battle of Grunwald at which participated militia formations from various lands of the Polish-Lithuanian Union. In maps of the 19th and 20th centuries, the territories of Ukraine were usually coloured yellow. The "Gold" (Or) is nearly always represented by a shade of Yellow, as there is no distinct colour "Yellow" in heraldry; they both count as "Gold".
Blue and gold are also national colours of Sweden, Palau and Kazakhstan.
The colours in the Ukrainian flag represent golden fields of grain under a clear blue sky, appropriate for a country known as the "bread basket" of its area.
The Ukrainian flag was light blue over yellow prior to the establishment of the Soviet Republic. Used sparingly, blue signifies blue skies or air. It can be used to denote good health.
Ukraine's state coat of arms feature the same colours found on the Ukrainian flag; a blue shield with gold trident, called the tryzub, which means "three teeth." It represents the triune God on earth and in heaven. It appears on the Presidential standard of Ukraine. Blue coloured tridents are considered to be irregular representation by the Ukrainian Heraldry Society.
In addition to the Hero of Ukraine Order, decorations that include or consist of the national colours are the Order of Prince Yaroslav the Wise, Order of Liberty, Order of Danylo Halytsky, Order of Merit, Order of Bohdan Khmelnytsky and Shevchenko National Prize
In many international team sports Ukraine (such as in the Olympic Games), colours used for the team are yellow and blue, where the blue is often a very dark blue. These include National Olympic Committee of Ukraine, Ukraine men's national ice hockey team, Ukraine national basketball team, Ukraine national football team, and Ukraine national bandy team. The club team FC Metalist Kharkiv has also adopted these colours.