The scarf above is made with just one skein each of Koigu kpppm colour 100 and kpppm colour 214 which are alternated every second row. The scarf can be made wider and longer but you will need more yarn.
You can find the pattern here.
This is a free pattern and all images and text are copyright of Loop Knitting Ltd. It is for personal and non-profit use only. This means you can knit it for yourself, as a gift or for charity. You may not sell a garment made from this pattern. You may not reproduce this for sale. Please ask if you wish to translate it or use to teach a class.