Dave if you are going to do color than just get that color.No mixing with clear.Think of pigment as color only.Color -stains,dyes,and tints that are added to clear.Finishs such as lacquer and poly are available in clear or colors.Clear is put over color to give that deep look.
lacquer is fast drying to work with and the best results are the solvent(lacquer thinner) based which require spraying.Danger explosives!Flashing is moisture traped in finish appearing whiteish.Retarder is added to resolve.
Poly-more durable and is also available water base.Safer.
Sounds like you might just wanna try the spray cans in color and then coat with clear.Hope this helped.