For a color block, wouldn't you want a fabric that reads more as a solid? I'm having trouble picturing this fabric in strips for that pattern. I'm thinking it will have lots of bright splashes of color in the strips.
I would try pulling a color out of the fabric. I'd start with the smaller brighter colors, such as the bright pink dots or the mustard yellow. If the background color is as gray as it looks on my screen, the yellow dull the combo down too much, though.
To be honest, I would pick an easier fabric to start with. Maybe a mottled batik that reads as more of a solid.