Here's color chart info article for your review. 58-62 Fender used Olympic White...some of the older Fenders have a little yellow tinge that comes with age. Not sure if it answers the question with regard to Jeff Beck's guitar but the chart gives the GM color codes. Also stage lighting can make the guitar change colors.
Thanks Larry, that is really helpful! I have been going back-and-forth among Olympic White, "Mellow Yellow," Ocean Turquoise and even occasionally Surf Green! My other guitar is actually a headless 24-fret HSS, but I decided if I really wanted proper Strat tone (including the neck pickup) I needed to just get an SSS 22 fret Strat-like guitar. I know pretty much all of the other details (rosewood, medium jumbo, white pick guard and covers, pickup choice, etc.) but I am stuck on the color, being unnecessarily indecisive. I am a huge fan of Jeff Beck, and just like the look of his main guitar. I have seen elsewhere that Olympic White seems to be an extremely popular choice (aside from 2- and 3-tone bursts, which I don't favor), and have seen it range from white to yellow. And no, I am not doing the "distressed" thing...!