Colourful Icons in Accordion Header

I’ve figured out how to produce colour icons within a page, but I don’t seem to be able to produce the same effect inside an accordion title area. Here’s a sample of what does NOT work.

[accordion_group]
[accordion_item icon name=”icon-puzzle-piece” size=”small” color=”#F90800″ float=”left” link=”” new_tab=”no” animation=”fade-in” title=”Module”]
Words
[/accordion_item]
[/accordion_group]

Is this even possible?