Did you check with a dealer about the colours. Don't go by the website...there are lots of errors on there. When I configured mine on the Canadian website it only gave me the options of Marine Blue, White, Silver or Black for an SXT with the sport package (along with a number of other options), when really all colours are available.
That’s a pretty good suggestion, the availability of colors changes so rapidly that by the time the website is changed the color may no longer be available or has been replaced with a new color.
Typically this isn’t the case with the essential colors (Black, Red, Blue, White, Silver) but even these faithful colors go through periods of unavailability. For the most up to date color options, contact your dealership.