A dark pattern is an online design choice that can mislead, pressure, or obstruct consumers when they make decisions.
Dark patterns may affect purchases, subscriptions, cancellation, privacy choices, fees, consent, or account settings.
Why dark patterns matter
Consumer protection law often looks at whether a practice is unfair, deceptive, or abusive. A design flow can be legally relevant when it hides material terms, makes cancellation difficult, steers users into unwanted charges, or creates misleading impressions.
The issue is not simply that a website is persuasive. The concern is that design may interfere with informed and voluntary consumer choice.
Where dark patterns appear
Dark patterns appear in checkout pages, subscription flows, privacy consent screens, cancellation processes, app interfaces, email preferences, and account deletion flows.
They are especially important in online services where the interface is the main way consumers see terms and make choices.
How it differs from nearby terms
A dark pattern is a design technique or user-interface practice. A deceptive trade practice is a broader legal category that may include misleading statements, omissions, pricing conduct, or interface design.
An automatic renewal term can be lawful or unlawful depending on disclosure, consent, cancellation, and governing rules; a dark pattern may make that renewal harder to understand or cancel.
Practical example
A subscription site makes the “continue paid plan” button large and bright, hides the cancellation option behind several screens, and uses confusing wording that makes users think cancellation will delete unrelated account data.
Related Terms
Quick check
Question: Is every persuasive website design a dark pattern?
Answer: No. The concern is design that misleads, pressures, hides material information, or obstructs consumer choice.