布兰科 covers several romance/Slavic names that share the "BLAN-koh" or "BRAN-koh" sound: Spanish/Portuguese Blanco/Branco ("white"), and shortened forms of Slavic names like Branković. In sports media it most often refers to Branco (Cláudio Ibrahim Vaz Leal), the Brazil left-back from the 1994 World Cup champion squad.
布 (bù) covers "B(l)-,"
兰 (lán) covers "-lan-/-ran-,"
科 (kē) covers "-co."