VW Blue Ambient Lighting: Specs & Details

'A while ago, I replaced the LEDs in my car radio from green to red and blue. Unfortunately, one of the blue display LEDs has now stopped working, the other has gone dark, and I don't have any more of that type. (They were 0603 SMD). I only have blue ones left, but they are much too turquoise.'

Does anyone happen to know the wavelength of the 'VW Blue' color?
Does VW use LEDs or incandescent bulbs?
Thanks in advance to everyone who's helping out.