I hate to bring back an old thread but figured if i cant ask the CC members who can i ask

Blues come in more shades than i would have imagined even when its darker blues.I have noticed that one car that stands out to me is Gumballs old car called a ford taurus royal pearl blue, but wondered if any colors where added to either under coat or base to acheive that shade.If any of you guys have some interesting blues you could post that would be great.
Thanks Sal