Specifically, I’m trying to decide on the ordering and darkness of colors in the scheme.

Ignoring the pattern itself, it’s just a placeholder I slopped on. I’m planning on designing a triad of registering stencils on separate but cooperative intervals, some of which will cross into the center line.

I could also double down on the white, but it might be a bit more “modern chic” than what I’m looking for. But I’m open to it.