I cast my vote for dark. Seems to make the colors really pop for me.

Exactly what I thought.

I say go for dark. Makes the color really standout.

I think if you are going to go for a 'light' background - go lighter with a white or off white - some of the blocks/arcs are getting 'lost' against the blue.

The blocks/arcs are dramatic against the black - but I think it's harsh contrast - it would work, if that's the look you want.

have you considered a medium to dark brown instead?

I still find it amazing how changing the colors of a pattern can make it look so different.

Just wonderful, great job and thank you for sharing, I like the black makes it pop and give it an oriental flavor.
Have a Blessed day
Ellen

The dark makes the colors pop, I think. It's going to be so pretty!

Love the texture of the light fabric, think I like it the best!!

I like both but it really pops on the dark background

With your brighter colors I'd have said dark and really liked the black until I, too, scrolled down and saw the lighter blue. It really does something for me. It's soft, but, striking. Let us know:)

Can you do a half and half quilt? Like a sunshine side and a shadow side?????