If there's any confusion, tell them these are RGB values. Most places will automatically convert them into whatever color system their store's machines use for mixing.

I created this gadget for people designing things digitally, so instead of running around dabbing paint everywhere like a dumbass, you can get it right the first time.

Update: I added a calculated neutral gray function to the matches. Also, I got a few Emails saying they took their screenshots to their local paint stores only for them to find out they don't know how to convert RGB values. Home Depot, Sherwin Williams, Lowes.. that's insane. How in the hell do these companies not know how to do this?! I was using RGB values to shade graffiti projects back when I was 13 man. Anyway, I may figure out a calculator that generates the mix amounts too. Research time!

Sherwin Williams does scan and match, so you could screenshot this and then print it out for them. Dude said they've had many people do that over the years with pictures from magazines and were happy with the accuracy of those matches. Stay tuned.