Arlington Public Library Lobby - 20:15:22 RGB
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/ArlingtonPublicLibraryLobby-Ambient-20-15-22-Default.jpg
I went somewhat bright in the library lobby, because when the player enters, there's not time to turn on a light before they get svcked into a forced conversation with the scribe. I chose 12:12:12 and 15:15:15 for the other sections of the library.
Farragut West Station - 8:7:7 RGB - the "glowing" typewriter issue
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/FarragutWestStation-Ambient-8-7-7-GlowingModelProblem.jpg
Farragut West Station - 8:7:7 RGB - Default lighting and with the nightvision goggles (at 2x brightness)
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/FarragutWestStation-Ambient-8-7-7-NoAssist.jpg
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/FarragutWestStation-Ambient-8-7-7-NVGDoubleBright.jpg
Even with the glowing typewriter, I still settled on 8:7:7 there instead of making it brighter in an attempt to make the glowy item stand out less.
Marigold Station - 5:5:7
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/MarigoldStation-Ambient-5-5-7-NoAssist.jpg
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/MarigoldStation-Ambient-5-5-7-NVGBright2x-Boost20.jpg
Maybe Marigold is a little dark, considering that it would be a location that gets discovered early. OTOH, it's only inhabitants are ants and they'd be unlikely to setup additional light sources.
Museum of Technology - 9:10:15 RGB
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/MuseumOfTech-DeltaIX-Ambient-9-10-15-Default.jpg
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/MuseumOfTech-DeltaIX-Ambient-9-10-15-NVGs.jpg
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/MuseumOfTech-DeltaIX-Ambient-9-10-15-PipboyLightMod-Grey3X.jpg
Super-Duper Mart - 10:10:10 RGB
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/SuperDuperMart-Ambient-10-10-10.jpg
A dark location, but not pitch black. Kind of a middle of the road choice at 10:10:10.
Tenleytown/Friendship Station - 5:7:8 RGB
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/TenleytownFriendshipStation-Ambient-5-7-8-Default.jpg
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/TenleytownFriendshipStation-Ambient-5-7-8-NVGDoubleBright20.jpg
http://www.wuphonsreach.org/Games/Fallout3/DarkerInteriors/TenleytownFriendshipStation-Ambient-5-7-8-PipboyLightMod-Grey3X.jpg
Tenleytown is a good location to test at because of the Brotherhood of Steel graffiti on the wall that needs to be seen by the player. Without any additional light source, the player can just make out the pipes along the wall and see just enough of the graffiti to know there's something there. And hopefully it encourages them to turn on a light or NVGs.