This image demonstrates the <i>principle</i> of additive color mixing, and is not meant as an exhibition of any particular color space. Original by Mike Horvath.
<p><a href="https://en.wikipedia.org/wiki/User:SharkD" class="extiw" title="wikipedia:User:SharkD">SharkD</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>
</p>
Later versions were uploaded by <a href="https://en.wikipedia.org/wiki/User:Jacobolus" class="extiw" title="en:User:Jacobolus">Jacobolus</a> at <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a>.
Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.