It's the only way you'll get what your after. Every camera brand (well sensor) will have slight variations in how they show colour and within that if you change the ISO value etc this too will effect the colour (from very mild to a major change). Also your screen will have a major effect on the colours you seen. I could take my SLR out and take 10 pictures of the same thing only changing one setting and they'll all look different. Similarly I could take the same picture and show in on 10 screen and they'll all be subtly different.
Never seen the need for these super bright side lights. I never, and I really do mean never actually drive with just them on. If it's a situation where you feel you need to have your lights on then put you dipped beam on.