I like the blue and surprisingly I like the purple a lot, too! I'm not normally a purple kind of person, but I do like this dark purple warp and would consider using purple for the blanket.
The sample is nearing the end, but I was able to do a lot with it even though it was only 2 yards! I'm glad I did this sample, although it gives me many more ideas I want to try! haha... that's the weaving world!!