Why don't you just get a picture of it and use the pick colour tool to find out?
I tried it on a render of the White Marlin and found the colours are as follows:
* The gray parts of the vessel below the waterline are:
Red: 61
Green: 70
Blue: 80
* The dark strip near the waterline seems to simply be black
* The turquoise strip above that is:
Red: 93
Green: 199
Blue: 226
Mike