Bulb color has nothing to do with the wiring overheating. The only thing that will damage the wiring is higher than stock wattage bulbs. Blue tinted bulbs will only accomplish 2 things in reality. 1. the tint absorbs useful light so the bulbs will either be dimmer or will have a thinner filament that runs hotter to compensate so it burns out quicker. 2. the light the tint absorbs is converted to heat so once again the bulb runs hotter and burns out quicker.
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