Colours of Ostrava, or simply Colours, a multi-genre event, is the biggest international music festival in Czechia and one of the biggest in Central Europe, held every summer since 2002 in Ostrava, the third largest city in the country.

[citation needed] Since 2016, the event has taken place concurrently with the international discussion forum Meltingpot.

The Bosnian rock group Dubioza kolektiv was also slated to perform, but due to restrictions on international travel, they were unable to attend.

[7] Due to the popularity of Colours and the electronic music festival Beats for Love, both of which take place in Ostrava in July, several trains are added to regular rail schedules by České dráhy.

In a recording, security personnel referred to the festival's official policy of prohibiting the propagation of ideology and likened the LGBT flag to the Hakenkreuz—a Nazi symbol.