rather than Raven which is more solid looking, you might try #4 Black. It has an undertone of another color.
When I use "black" batik I try to find those that have some under color. Hoffman did have one but discontinued that was black/cherry. Had a slight undertone of red., It blended with all colors and gave a sparle to the blocks. If I can't get that one then a black with undertone of dark navy works well.,