It is normally blue-black when applied. Sometimes it is more brown. It dries gray and darkens again when you put mink oil or something like it over top. I then finish with shoe polish or Fieblings Antique Finish. The great thing about it is that it is pretty permanent and doesn't run or wash out. If you want a more controllable color, you have to use leather dye or stain, but you are going to use a lot more, and have to rinse it good. I keep a large bottle of vinegar with some wrought iron in it. As I use it, I add more vinegar. Generally, it is sitting for weeks before being used, and the leather is as dark as it is going to get in a few minutes. I sometimes make a couple of applications if I don't like how dark it is.