Oooh, i did just this in my kitchen. Experimented a few different ways. GreenDesign is absolutely right - if you just lighten it by telling the guys to mix in 50% less of the colorant - you get a very different colour. RH-SS is mixed in a creamy or something base - not a white one, so the creaminess of the base manifests more than it does in SS. Result is a sort of glassy, celery colour - very nice, actually, but not reminiscent of Silver Sage. Since, not what I was looking for and I wound up using that in another space. However, mixing the paint with 50% of white yielded a colour that was RH Silver-Sage-only-lighter. So, all that said, I'd recommend a couple of options: (1) try mixing white paint with RH-SS till you have the shade you like and then have the shop chaps colour match the result. (2) Restoration Hardware's Silver Sage line now has deeper as well as lighter colours than when I did my kitchen. Do try and take a look at "Pale Silver Sage" as well as "Pale Silver" to see if those pass muster with you. (3) You might also want your paint chaps mix the RH-SS colour in the same base at half concentration and see if you like the result. As mentioned earlier, it isn't really Silver-Sage's paler sibling so much as it is say, RH's "Sycamore Green". Good luck. Silver Sage is a very nice colour and 6+ years after, I'm still appreciating it.

Yeah, I had heard thru the grapevine that Silver Sage was being phased out and replaced -- didn't know when or if. It's way overdue IMO. Silver Sage's star was thoroughly burned thru by the end of 2007, beginning of 2008. It's a pretty color and all, but much like Restrained Gold from SW, it suffered from overexposure and overuse. People just got sick of it. Sick of seeing it, sick of reading about it, sick of hearing about it. RIP Silver Sage.

I know you said SW, but a few full spectrum colors popped into my head. Ellen Kennon's Aqua for your light blue-green. Dusk for a light blue. She has several neutrals, Wheat, Beige and Greige would work in nicely with the other two colors if they would be in close proximity. SW neutrals, there's always Latte, Nomadic Desert and Kilim Beige. If you can find Olympic Paints, grab a swatch of Blue Shamrock for your light blue-green and have SW color match it. Light blues at SW, I'd comb thru the Martha Stewart Signature colors to find one while they still have them. White trim color SW Dover White or SW Snowbound would be chips to grab and take home to see how they look with your flooring, etc. Hope that helps some.

I know what you mean. Light silver sage does not seem to be a lighter version of SS. I don't have any experience with coordinating the RH colors, but I'm wondering whether Blue Sage might not be a better match than Dusk since it is in the same collection, whereas Dusk is in the Shore Paint Collection. Here is a link that might be useful: RH paints