Zoor theme supports and uses Drupal core color module. Using color module you can change color of your theme.
Enable color module
Enable color module from Administrator >> System >> Modules
Change Color of theme
You can now change color of your site from theme settings.
Navigate to: Home >> Administration >> Appearance >> Settings (of zoor theme)
admin/appearance/settings/zoor
Select any pre-defined color from drop down list, or just select any color from color picker. After selecting color, scroll down and click Save Configuration button.