Flag of Arriola

The flag of Arriola (Bandera de Arriolá), often referred to in Aranese as la Tricolor is a tricolour featuring three equally-sized vertical pales of yellow, white and red, with the yellow at the hoist side. Its current form has been in use since 18 June 1978 and was formally adopted on 1 January 1982.

The first entity to use the Aranese tricolour was the Cispyrenean Republic in 1797, which was established in an attempt to supplant the Kingdom of Arriola after Napoleon's victorious army crossed the Pyrenees in 1796. The colours chosen by the Cispyrenean Republic were red and yellow, which were the colours of the recently conquered County of Catalonia; and white, which was the colour of the uniforms worn by pro-Revolutionary militas. During this time, many small French-proxy republics of Jacobin inspiration supplanted the ancient absolute Aranese states and almost all, with variants of colour, used flags characterised by three bands of equal size, clearly inspired by the French model of 1790.

Some have attributed particular values to the colours, and a common interpretation is that the gold/yellow represents the Community's commitment to expanding and maintaining justice for all Aranese; white, the snow-capped Pyrenees; and red, blood spilt in the Albigensian Crusade and other wars fought to maintain Aranese unity.