We´ve omitted to deliver touch up paint with our bikes since the release of 2019 Model year. Reason being that the paint would only last for half a year or so, depending on storage. By the time most of our customers would need it, is already deteriorated. Since this would lead to shipping polluting waste throughout the world, we decided against it.
However, there are many online retailers that offer touch-up paint pens, who can mix a fitting color for you, which can find with comparing against a RAL or Pantone deck.