iCloud: Add a new contact
You can create and edit contacts using Contacts on iCloud.com.
Contacts are sorted and displayed according to your settings in Contacts preferences.
Create a new contact
Click the Add button in the sidebar, then choose New Contact.
A blank contact card appears.
Type information for the contact. You can also add a photo.
Add a contact from iCloud Mail
If you use iCloud Mail, you can easily add the email addresses of any senders or recipients to iCloud Contacts.
When viewing a message in iCloud Mail, click the name or email address of the sender or recipient in the message header, enter information for the contact, then click Save.