The place I use will mix up a 1/2 pint and put half of it in a rattle can for ~$25. I second the suggestion of using their color matching cameras vs going with a paint code. Most automotive paints are a combination of 4-10 base colors. Unless you’re buying the paint directly from the manufacture, chances are slim to none you’re going to get a correct match in a small qty like that.
Here’s an example of the “iconic” Guards Red from OEM Glasurit;
Or, if you’re not really that picky, you can just buy touch up paint online off the code. I use the leftover Brilliant Silver Metallic I had mixed up to paint my Mercedes hood for touching up my Spyder. You have to be less than a foot away to see difference, and even then only if you know where to look.
ps: If you go with a paint shop’s color camera, go on a partly cloudy day. Bright sunlight and dark clouds mess with the process.