I, too, think the dark blue is better for the sashing. If you decide to use the dark blue, I'd cut it out the long side of the sashing. Then, I'd cut just a couple of light blue cornerstones and try it out before you sew. They could add a lot, or not.
If I liked it, I'd strip piece those cornerstones.
bkay
Last edited by bkay; 03-03-2019 at 06:34 AM.
Reason: grammar