While exploring Lexus Japan’s website, TPP commenter Eddie discovered images of all the 2010 Lexus RX colors:

The Cerulean Blue Metallic is a much nicer hue than Breakwater Metallic, though I’ll have to see it in person first.

Also, here are the interior colors:

Personally, I’d probably go for Smoky Granite Mica with the Black Interior. Snazzy!