... has worked best in car dashboards. Audi's use of red is really very good, as is the Lexus use of white LEDs. Indicator LEDs which are just there for 'look! pretty!' appeal are garish.
The penchants most manufacturers seem to have with blue LEDs is way out of hand. Its one thing to have the cool tech geek glow of lights and less obnoxious LEDs on gadgets (like those typically found on level meters/equalizers or those which light up a semi-opaque plastic cover, so as to be more diffuse and pleasing).
The insanely bright and in your face blue LEDs are nothing but an eyesore IMHO. There is one on my studio microphone, and I have to cover it up its so bright and distracting, its as bright as a flashlight, and would blind me (just like a flash bulb) when I look down at my notes.
LEDs and lights are cool!
Super Bright, 'Look Ma, I'm simulating a blue supernova'.....not so much.

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