Description: Azure a Griffin or and argent, armed gules crowned or holding
an escutcheon argent, charged with maiuscule letters RB gules (the old
seal picture of two former villages - they had common seal). Flag adopted
4 Oct 1994. Reverse: 3 horizontal stripes yellow - white - blue.
Source: Mesto Ostrava - Znaky a prapory (Jan Tejkal ed.), REPRONIS,
Aleš Křižan, 19 Dec 2000