Nath,
If you can't find the color you want on the chart, that means we have discontinued that color and do not make that color anymore. A couple ways to get around this is to find a used or older bass we made that has a color of your interest. Try going to our on-line dealer locater. "www.ernieball.com/mmonline/index.html" Here, just enter your zip code and a list of all dealers in your area will show up. You can click on these lists of dealers and they will show all guitar and bass models they have,including its color.
I know its research, but it is one solution to find older colors out there.
Hmm, actually, the color that we have that is close to the sky blue color is called Blue Dawn. It is a sparkle burst color that goes from light sparkle blue on the inside to dark sparkle blue on the outside.
Nath, go to www.basscentral.com, they're one of the number one MM dealers in the U.S.. Chances are they'll have something you'll like. If you don't see it on the webpage, call their 800 number and talk to them in person. Bass Central is one of the best music retailers I've come across.