Matt,
Got my LED's last week (white, red & green) and was experimenting with them in my bumpers. Bumpers have a red lens that covers the bulb. The white LED made it kind of pinkish colored. I found the red LED's looked much better under the bumper lens, much more red like the original bulbs.
I don't have any O22 switches so don't know about the lenses, but just a FYI on what I discovered with the bumpers.