Hmm, we got it in Valspar last year, and it turned out very nicely. We left the SW test patch up for a while to see how close the color match was, and it was quite accurate. The only difference I noted was that in artificial light (night time), the Valspar color looked just a touch more green than the SW. I just love the color.

Is it common for painters to only work with one company? (I've only ever DIYed paint jobs, so this is a question from sheer ignorance...)

Check PPG Gale force.
Yes painters will choose paint they are familiar with.

Here is a link that might be useful: http://www.ppgpittsburghpaints.com/color/paint-colors/gale-force-atc-59

Thanks for your responses. I may get a sample size color matched before I go all the way with it! I think Gale force may be a bit bluer. I love that Sea salt has the gray/green/blue depending on the light.

Get a sample of .....
Bay of Fundy
Falling star
White Clover

Along with a color matched Sea Salt

Throw them all up and see how you feel in a day or two..

PPG Bay of Fundy would be closest, unless the paint store will try to color match it even closer.

I've just had a color nightmare trying to match a BM color to SW. Then went and just bought it at BM and it doesn't match either. Have made 4 trips to 2 paint store and need to go again. I put up a sample or BM paint and because I bought it in Aura it's not even the same pigments. I feel a bait and switch and I'm pretty annoyed about it. Anyway, possibly pre commiserating with you?
In the future I don't think I'll try to go with any color matching. I'm particular and it's too much of a headache. Just my recent $.02.

Thanks for your 2 cents:) I am certain that I am putting way to much time and effort into selecting paint. I am having a house built which is taking ridiculously long time!! During this period of hurry up and wait, I am stressing completely over the paint. My furnishings will be all new and I will probably wait to furnish it until after it's built and see what my fund situation is! So therefore, I can't paint as to what my furniture will be. Ugh!!! I wish my painter would use SW but unfortunately that will be added cost because he has a contract with the local Pittsburgh paint dealer. And to make matters worse, I am reading on here about north facing rooms and lack of light so now my paint colors may have to change again. Who knew home decorating could make a person go crazy!!! (sorry for the rant!) Oh, and my husband may kill me if I go get any more samples mixed:/

I thought I loved the color, too. I painted a windowless half bath and a windowless jack & jill bath in it (from SW). One looks more blue and the other green. Artificial light makes it look greener while fluorescent light makes it appear a beautiful bluish tint. Depending on the lighting and the time of day, I either love it or hate it. The green reminds me of a hospital green, Ugh.

I'm in the process of choosing a bedroom paint color and somehow ended up with a sample of Sea Salt from SW and one color matched from Lowe's. They look identical. Hopefully your PPG sample will match up!

Thanks so much for your responses! Love your photo stephf!! I think I am going to just go get a sample size colormatched and stop stressing. I probably should just pick one plain neutral and do the whole house in it. That way I won't have to be freaking out over the 3 colors that I am allowed by the builder to choose! Also, I love to see rooms already painted before I pick the color but finding rooms online painted in different PPG paints are quite few and far between:(

I am oh so excited! I just found out that the company my painter uses also carries Glidden. I found a color that is so close to SW Sea Salt, called Gentle Tide. The color has been discontinued but can still be mixed. I can't wait to get a sample mixed up!