Before you attempt to connect, make sure you have created the Mysql database in Control Panel.
To connect your Mysql database with Navicat, please follow the steps below:
1. Create a new connection name for your database connection.
2. Host name: [The Mysql host name server name can be found in the Control Panel]
3. Port: 
4. User name:[You can fine the database username from your control panel]
5. Password: [The password you set for your database, you can find it from your control panel as well]
Click connect and you will be connected to the Mysql server.