However, I received an order of samples this week from Moi Minerals, and one of the shadow samples I ordered was "Mercy", which is described as "Deep purple/blue lights when applied and then color shifts to a rose/copper...becomes more metallic rose copper when wet."
Holly from Moi Minerals generously upgraded my sample of Mercy to a full size, and she couldn't have picked a better color to do it with. I am in love with Mercy! It's an incredibly complex color, but to my eye, it's predominantly purple, but it definitely looks more rose/copper in certain lights.
I had to take a ton of photos of this color on my eyes (it's the main lid color in the below EOTD photos), as well as swatches, and a photo of the shadow in the jar.
So here you go, Mercy from Moi Minerals:
This photo is very close to the true color I see in the jar. In real life, it may have a tiny bit more of an amethyst purple about it.
The following swatches were taking in various lighting settings.