As with knitting, you can play with colour in weaving. Since I'm new to this weaving thing, these scarves are just 2-colours in some pretty basic patterns. Both are woven with a yarn called Madeline Tosh merino light in dark blue (Baltic) and a very pale blue/grey (Chambray). the patterns are produced by how you warp and weave (
instructions are here).
The houndstooth scarf
The log cabin scarf