hmmm, I don't believe you can... from perlop

qw/STRING/

Returns a list of the words extracted out of STRING, using embedded wh
+itespace as the word
delimiters. It is exactly equivalent to 

    split(' ', q/STRING/);

This equivalency means that if used in scalar context, you'll get spli
+t's (unfortunate)
scalar context behavior, complete with mysterious warnings. 

Some frequently seen examples: 


    use POSIX qw( setlocale localeconv )
    @EXPORT = qw( foo bar baz );

A common mistake is to try to separate the words with comma or to put 
+comments into a
multi-line perlman:perlop-string. For this reason the -w switch produc
+e warnings
if the STRING contains the ``,'' or the ``#'' character.
[download]

Reading that last part, it sounds like '#' will cause a warning in qw no matter what (well as long as warnings are on)

Looks like you might be stuck with something like:

split(' ',q/#FF0000 #00FF00 #0000FF/)
[download]

As in:

#!/usr/bin/perl -wT
use strict;

print "$_ " for (qw ( #FF0000 #00FF00 #0000FF ));
print "\n";
print "$_ " for (split(' ',q/#FF0000 #00FF00 #0000FF/));
print "\n";

=output
Possible attempt to put comments in qw() list at ./qw.pl line 4.
#FF0000 #00FF00 #0000FF 
#FF0000 #00FF00 #0000FF
[download]

note, the warning is from the original style qw quoting... comment that out, and the warning will be gone. </code>

-Blake