Took mine off with dental floss and wife's hair dryer. Denim black looks fine. Did all the reflective crap at the same time. It takes a bit of effort if you don't give the hair dryer enough time to get it all gummy, so be patient with it. And if you end up having to rub at all to get the goo off, I recommend you use some WD40 and a soft cotton towel (not apaper ot typical kitchen hand towel. DO NOT DRY RUB IT.
You may also notice a slight color difference when you initially take it off, depending on how long you have ridden the bike in the sun before removing the emblem. I did. But it went away after a few weeks of daily, sunny riding.
DO take the crappy stamped metal emblem off before you try the dental floss of fishing string.
Big Daddy Dean 'O