Get the alpine headunit that gives you the ability to select from 200+ colours for the lcd display. Pioneer would also be a good choice for headunits.
Select the display colour that goes best with your dashboard and interior. It should be clear, consistent and conservative. You might have more than 1 suitable choice for this. Take your time with it, and remember to test its suitableness in both day and night conditions. Whatever you choose, do not make the display colour tacky.