You can delete your account in your User Menu of Pantone Connect. This is accessed from within Pantone Connect by clicking your initials in upper right corner. From here, please select PROFILE to display your account details including an option to delete permanently. This removes your Pantone Connect account completely and deletes all your data so you no longer have access to any Pantone Connect features.

Please note that if you have a Premium Subscription you will need to cancel the subscription as well as deletion of the account data does not automatically cancel any subscription.