Planning to purchase an XC at some point in the near future and have been looking at a few online adds. Now, I know these cars are supposed to run an appropriate modern coolant. I've noticed some pictures showing a car w/ green coolant. From the photo it appears to be a deeper green than the flourescent green of old school generic anti-freeze. I'm used to such coolants being either pink/purple but have not seen green. If I see a car with under 100k not running Volvo coolant, that raises some flags.

What color is the appropriate Volvo coolant?