System Settings : Customize and Brand Rev : Use a Custom Secondary Color for Rev
  
Use a Custom Secondary Color for Rev
A custom secondary color may be used to replace the default secondary color so that your portal UI elements match your organization colors. UI elements such as upload icons and player controls will be branded with the secondary color.
*To use a custom secondary color:
1. Navigate to Admin > System Settings > Branding.
2. Click the Secondary Color color picker in the Colors section and choose a custom secondary color. You may also enter a Hexadecimal value.
3. Click the Save Changes button to apply the new secondary color.
4. Click the Reset Default button to revert back to the default secondary color.