HunterLab no longer offers an in house color seminar. However we have recently added online resources to help fulfill some of these needs.
On our website we have a whole Knowledge Library that contains helpful Application Notes and Measurement Methods. Specifically in the Application Notes section we recommend the Basic of Color Theory Powerpoint, this has a lot of helpful information.
HunterLab also has a support site support.hunterlab.com where we have entries that discuss color theory and application. Here you can use the search bar to search for a particular topic or you can use the categories to narrow the articles displayed to that category. If you have any additional questions or concerns that are not addressed you can use the red Support tab to submit a query.