Gaelic games county colours

The county colours of an Irish county are the colours of the kit worn by that county's representative team in the inter-county competitions of the Gaelic Athletic Association (GAA). The most important of these are the All-Ireland Senior Football Championship and the All-Ireland Senior Hurling Championship. Fans attending matches often wear replica jerseys, and wave flags and banners in the county colours. In the build-up to a major match, flags and bunting are flown or hung from cars, buildings, telegraph poles, and other fixtures across the county, especially in those regions where GAA support is strong.

Where a county's jersey is multi-coloured, these are the county colours. Where the jersey is a single colour, the colour of the shorts is also included. Shorts were formerly always white, but some counties adopted coloured shorts from the 1960s, such as Dublin's now familiar navy blue.

While each county council has a coat of arms, there are no official county flags. Flags with the GAA county colours serve as de facto county flags. However, there are no standardised formats for these, except Kildare whose flag, like their kit, is all-white. Typically, flags are formed as vertical bicolours or tricolours. Usually, the major colour is nearer the hoist. Moreover, horizontal stripes are used by some individuals. (This is common in County Offaly, where vertical county colours might be mistaken for the flag of Ireland; however other Offaly fans deliberately exploit this double significance.)

Flags with checkerboard, repeating stripes, and other patterns are also found. In recent years, flags have been commercially produced which feature the county's GAA logo on the flag. These logos are sometimes based on the official county coat-of-arms, but some have been replaced with unrelated designs. Fans may also wave other flags of the appropriate colours. For example, among the red-and-white flags used by individual Cork GAA supporters have been the flag of Canada and the ensign of the Imperial Japanese Navy. As Cork is nicknamed the "Rebel County", its fans have also flown the Rebel Flag of the American Civil War. With the Blue and Gold flags used by individual Tipperary GAA supporters, there has been the Flag of Sweden and the Flag of Ukraine. Mayo fans have used the flags of Italy, Portugal and Bangladesh. Kerry supporters have been seen to wave Brazilian flags due to the similar colours and fact that Brazil have always dominated soccer while Kerry are considered the "Brazil of Gaelic Football" due to their enormous success at the sport.

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