About 8 or so months ago, we reported an issue with the AdSense color picker, where it would not save the color in the manage ads area.
An updated WebmasterWorld thread seems to have AdSense publishers confirming that this is now working again. Here is the confirmation we got from a publisher just about 8 months after first reporting the issue:
This appears to be fixed now!
When you edit an ad, the current ad color settings do now show in the color options correctly, and the sample ad reflects the correct color settings.
Users should note that the Color Palettes drop-down does not reflect the current ad color settings, HOWEVER, the Color Palettes drop-down does not affect editing the ad unless you drop it down and change it.
Thanks, Google, for fixing this!
Forum discussion at WebmasterWorld.