Jamie,
Saw your post. Maybe I can help. Crescent floss now goes by the name of "Classic Colorworks" floss.
If you type in "Classic Colorworks floss conversion to DMC floss" on the Internet, you should get a list.
Choose the "Stitches 'N Things" website and it will have a conversion chart there. But read the small print
Above the chart. It says you may not get an exact match AND you will see that you may have to "blend" a lot of the DMC floss colors together to get an approximate color Close to the Crescent (Classic Colorworks)
Floss color. Hope this helps.
I'm not an employee of ECS but one of the stitchers that saw your chat. :)