I actually know what you mean. Did I leave out navy ties? Yes I did, and deliberately so. Too matchy matchy imo if worn with a navy suit; shades of the horrid, two-toned 1990s. What's wrong with a little tone on tone? Would you also consider a black and gold tie on a black and gold shirt too matchy matchy? You need to live a little! I wear navy ties with navy suits a bit. They are never exactly the same shade, so I think that's okay. For instance, I have a vintage Italian silk knit tie which is useful with a navy suit. It's darker than most of my suits and it has a really knobbly texture.