Art work at this link...you can get spot color vinyl or process color vinyl. artwork at this link
make sure whoever you get them from get the color you want.
cut pre-colored vinyl makes some nice decals. Process color decals should be laminated and be printed on a quality vinyl like 3M, Avery, or Oracal - and eco-solvent will give you a richer color than a UV and Latex ink will force you into HP media - questionable.