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.