Thats what I did with my car,
all of my interior lights are or will be blue with the exception of the lights that light up the Gauge needles, those are UV.
Blue reverse indiglo gauges
Blue LED instrument panel lights
Blue LED Glove box and ashtray lights
Blue LED window and door control panel
Blue LED dome light
Hidden Blue light rope accents (light shows through the gaps of the glove box, and the bottom of the dash)
Blue LED in trunk with hidden blue light rope to accent the amps, cap, and Sub.
Still need:
a light up kit for empeg but I want blue LED's with silver (not chrome) translucent buttons so that the buttons are silver in daylight (to match my Gauge face, steering wheel remote, and AC control knobs) and light up a soft blue at night.
Two pillar gauges (silver face, blue lights/numbers) Volt meter and most likely oil pressure gauges