[bobsentell]

1. Install Windows Phone 8.1
2. Set your theme to sync across devices
3. Go to your Windows 8.1 device
4. Change the color theme to any color you want
5. Go back to your Windows Phone and confirm change.

You may have to wait a few minutes between steps to ensure it takes.

Enjoy!

Edit: I think this works. It may just set the theme color to the closest one on your phone. But when I changed mine to a darker color on my Surface, it also changed the color on my Phone.

[ven07]

Nice tip :D

[AymanWP93]

Any Confirmation ??
I don't have any Windows 8 device ( my computer is still in Win 7 Ultimate ) ?

[bobsentell]

As best as I can tell this works. You are limited to the accent colors provided on Windows 8, but it appears that when you set a color on Windows 8 it transfers over to your phone.

Again, this may just be moving to the closest color on your phone and not the actual color. This will have to be something for Microsoft to confirm.

[peachy001]

Anyone having issues with the backgrounds? It does a couple, but then I have to reset to get it to take.