FINAL EDIT: The pallates for Castform's formes are like the ones for any shiny; the game just substitutes the pallate color for color. Make sure you take that into account when indexing the sprites.
It's fine, my sprites use the original palette perfectly... when they work, at least.
So, I've found the 'address' of each color's value in the palette... but, how do I find the hex location for these exactly?
I've included a screenshot.