Yes. From about the middle of the Danish Iron Age they began to colour their clothes in all sorts of colours. In the Early Iron Age, one had carefully sorted out the wool and made use of the natural colours of the yarn to creat dice and striped patterns.
From the middle of the iron Age on, yellow, brown as well as blue and red colours start to appear. Blue and red were expensive to get and were probably reserved for the wealthier people. Brown, yellow and other colours that can be made by wild and ordinary plants, leaves, mosses etc. were used by everyone.