Or contact this company
http://www.sunraylighting.com/techinfo.htm . They carry all kinds of bulbs, including automotive, and their tech said they did bulb color tinting for interior lights as well. My High Beam indicator has faded to white, and is too bright, so I am going to have them tint the bulb dark blue - cheaper than replacing the dash part!
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John
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E