The Fjord horse has several different sorts of dun colour. This is the same kind of colour as the wild horse of Central Asia, the Przewalski, and the Tarpan, the European wild horse. This kind of colour is also called wild colour.
The basic wild colours are brown dun, red dun and grey. In addition, uls dun and yellow dun are genuine colours of the breed. At the annual general meeting of Norges Fjordhestlag in 1980, it was agreed upon and decided that these five colours shall be acknowledged as the genuine and typical colours of the Fjordhorse.