I was very happy with the steel grey (renamed midnight silver - not to be confused with the original Tesla dolphin grey, which I preferred most of all). The steel grey (now midnight silver) does indeed have flecks of blue in that metallic although I've not heard it referred to as baby blue.
Midnight silver remains my favorite now-available colour, with kudos to the green and titanium/champagne colour that was short-lived. I never understood the need for 2 blacks and 2 whites, and always thought the cargo van white cars looked like panda bears given all of the black and silver trim and taillight red that comes with.
So why did I end up with the pearlescent white for the second chariot? It's actually an interesting color when clean and shiny and in direct light - as well as at night - go figure. Plus the blues just aren't the right shades for me - the original Tesla blue nor the more medium current variant.
Maybe someday... Wasn't the new paint shack supposed to support 16 colours? Heh.