We got really lucky, and the woman who did the wood refinishing for us had just finished a project at the Gamble House. She had access to the paint formulas that were used to recreate the original interior paint scheme that Greene and Greene created and gave them to us. That sage green we used is a totally period appropriate reproduction.
The plan is to paint the music room in the same color scheme, but it took us three full days to do these two rooms and I fell off the ladder, spilling an entire gallon of paint all over myself. It's safe to say we won't be rushing to start painting again any time soon.