Looks too dark to be Sky Blue, but internet photos and/or scans are often misleading. I'd guess either Dolphin Blue or maybe Ice Blue, but they're just guesses.
There is a Paulson chip color chart here on PCF, at the bottom of page 3 in the Resources section.
It's got a *slight* greenness to the blue in person. I checked the resource page you mentioned but had the same reaction - too hard to tell from a pic. Just curious if anyone knew on this one for sure.
The little color swatch pics on the resources page is very difficult to use for any type of color matching. You really just can't color match using pics when it comes to colors like blue where there are so many options.
Color matching pink or peach is a bit easier as there is only a handful of choices but even then its still iffy.