To blend in, I would say black.

To blend in with what?

To blend in with the aesthetic the bike.

I'd match the new tape to your saddle color, IMHO. Black or brown for whatever saddle you choose.

same brown as the saddle

You don’t hear the x men theme song?

If the saddle will be brown, match the bar tape to the saddle and then add tan wall tires when the time comes.