After you have done a search, you can narrow your results down even further. From the results page, there is a section titled "Narrow Results".
Click on a type of blue to narrow your products down to that specific shade. Rather than trying to match what the supplier listed (navy, navy blue, dark navy blue); you have access to all the products in that color field through a few easy clicks!
If you find that you have narrowed the criteria too deeply, you are able to remove some of your search by unchecking it in the "Your Search Terms" area.
You can also click on the "Clear All" link to remove all of the search terms.