What consitutes a look and feel which would not be considered a copy website or app?
<p>One can't copy a whole website or an app desgin, because it's copyright infringement.</p>
<p>But can one copy it to <em>some degree</em>, while making sure that a reasonable user wouldn't confuse it with the original?</p>
<ul>
<li>I'm referring to the &quot;confusing reasonable user&quot; concept, because this seems to be a main consideration for this kind of question, <a href="https://law.stackexchange.com/a/56829/41612">mentioned in an answer</a> of another question, and also in a <a href="https://stackapps.com/a/923/59842">related answer by Joel Spolsky</a> (of course, I'm asking a general question, this is not about SE).</li>
</ul>
<p>If so, what would constitute a design, look, and feel which would <em>not</em> be considered a copy website or app? Is it a question of a ratio (% of copied design)? Does placing disclaimers of &quot;this website is not related to that other website&quot; matter?</p>
<ul>
<li><em>Non-Duplicates</em>:
<ul>
<li><a href="https://law.stackexchange.com/questions/22897/is-it-legal-to-copy-website-design">Is it legal to copy website design?</a> - asks about completely copying.</li>
<li><a href="https://law.stackexchange.com/questions/56820/is-it-allowed-to-copy-a-website-design">Is it allowed to &quot;copy&quot; a website design? [closed]</a> - closed for lack of details.</li>
</ul>
</li>
</ul>

<blockquote>
<p>But can one copy it to some degree, while making sure that a reasonable user wouldn't confuse it with the original?</p>
</blockquote>
<p>No.</p>
<blockquote>
<p>I'm referring to the &quot;confusing reasonable user&quot; concept, because this seems to be a main consideration for this kind of question, mentioned in an answer of another question, and also in a related answer by Joel Spolsky (of course, I'm asking a general question, this is not about SE).</p>
</blockquote>
<p>This concept is a test for <em>trademark</em> infringement, not copyright infringement.</p>
<blockquote>
<p>If so, what would constitute a design, look, and feel which would not be considered a copy website or app? Is it a question of a ratio (% of copied design)?</p>
</blockquote>
<p>It's a fact-specific analysis of the individual case.</p>

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