| Group Members | Jan Křížek, Václav Zima, Vojtěch Říha |
| Past Group Members | Radim Hladík Vladimír Mišík Jiří Kozel Vlado Čech Miloš Svoboda Lešek Semelka Josef Kůstka Oldřich Veselý Fedor Frešo Oldřich Kellner Luboš Pospíšil Luboš Manda Radek Křemenák Josef Havlíček David Koller Jan Křížek Václav Zima Vojtěch Říha |
| Music Genre(s) | Progressive rock Art rock jazz rock blues rock |
| Origin | Czechoslovakia Prague, Czechoslovakia |
| Year(s) Active | 1968 (1968)–1990 (1990), 2004 (2004)–2016 (2016) |
| Record Label | Supraphon Panton |
| Associated Acts | The Matadors Jaroslav Hutka |
Blue Effect was a Czech rock band, also operating under the names M. Efekt, Modrý efekt, or The Special Blue Effect, since their formation in 1968. The band's main and only permanent member from its founding until his death in 2016 was guitarist Radim Hladík, formerly of The Matadors. Blue Effect changed their musical style several times, ranging from rhythm and blues, jazz fusion, to art rock.
