El azul Vergara Curiosity · Bergara, Debagoiena / Alto Deba, Gipuzkoa The term 'azul Vergara' (Vergara blue) refers to the colour of the denim-like fabric traditionally dyed in Bergara, an important historic textile centre. Photo: No machine-readable author provided. Mills~commonswiki assumed (based on copyright claims). (Public domain) What to see and do in Bergara