While lure companies make A LOT of different colored lures, sometimes they don't make JUST the color your looking for.
When it comes to soft plastic swimbaits here is a trick Eric Gates from The Freight Train Fishing Charters uses to get specific colors he is looking for.
Start by buying your favorite brand of soft plastic swimbait in a plain base color (White is always a great starting point). Grab some assorted color sharpies and get creative with your colors. Add scales, stripes., gills, fins, spots, etc to really make your baits come alive.
Also, this is a great way to avoid buying a huge amount of production colors. A couple packs of white swimbaits and a few sharpies can provide countless color combos.