frannella

You cant go wrong with either color, but I think Navy with a red flange would complement your colorful blocks really nicely. Well done.

peaceandjoy

Well, now that I've seen 4 options... I say red! Okay, it's a favorite color. But I think it frames it nicely where the blue disappears. Although that is also very nice.

audsgirl

The navy would add a calm finish to the quilt, but the red would add a lively accent. I'm not fond of red myself, but if your sister uses it as an accent, she might like that.

Leslie