The colour was presented to the regiment in Enköping by the Supreme Commander, general Johan Hederstedt on 20 May 2000. The colour replaced an older which was presented to the former Royal Uppland Regiment (I 8) in 1955 and which was handed over to S 1 in 1957. The colour is drawn by Kristina Holmgård-Åkerberg and embroidered by hand in insertion technique by Sofie Thorburn. Blazon: "On red cloth the provincial badge of Uppland; a yellow orb, banded and ensigned with a cross-crosslet. On a yellow border at the upper side of the colour, battle honours (Varberg 1565, Narva 1581, Lützen 1632, Warszawa 1656, Frederiksodde 1657, March Across the Belts 1658, Rügen 1678, Düna 1701, Kliszow 1702, Holovczyn 1708, Helsingborg 1710, Svensksund 1790) in red."