Undergarments!

I bought my dress back in October and I tried it back on two days ago when I was shopping for veils. I’ve come to the realization that I have no idea what I’m going to do about undergarments. My dress is a mermaid style with a low back and see through lace. I can’t wear a slip because it will show through the lace, but I really want to make sure there is still body for my skirt. I think I’ll be fine with a pair of nude spanks because it will just look like my skin. But all the slips I can find are white! Has anyone else had this problem? I can’t believe I didn’t even think of this.