I've done a ton of color research. Here are some samples of base colors I really like.
Toyota Blue Ribbon (8T5)

Toyota Indigo Ink Pearl (8P4)


Toyota Nautical Blue Metallic (8H3)

House of Color Cobalt Kandy (probably over a black base). Cobalt over silver is definitely too light.


House of Kolor Midnite Blue Pearl. In this picture it looks great. In other pictures I seen it looks almost black. This pic makes me wonder if a similar colored light blue pinstripe might look pretty good against the gold.