I am trying to solve your problem, be sure to back up your registry before modifying. Most of the color settings in the registry are located in following key.
1) Press Windows Logo Key + R.
2) Type regedit and press OK
3) Navigate to the following key: HKEY_CURRENT_USER\Control Panel\Colors and you can easy find Highlight and Hot Tracking Color, double click these items to manually change the value, You can check the RGB and preview the detailed color and open Paint and click Edit Colors.