Version of <a href="//commons.wikimedia.org/wiki/File:CIE1931xy_blank.svg" title="File:CIE1931xy blank.svg">File:CIE1931xy_blank.svg</a> with CIE RGB primaries and white point. Similar to <a href="//commons.wikimedia.org/wiki/File:CIExy1931_CIERGB.png" title="File:CIExy1931 CIERGB.png">File:CIExy1931_CIERGB.png</a>, but see the descriptions of <a href="//commons.wikimedia.org/wiki/File:CIE1931xy_blank.svg" title="File:CIE1931xy blank.svg">File:CIE1931xy_blank.svg</a> and <a href="//commons.wikimedia.org/wiki/File:CIE1931xy_sRGB.svg" title="File:CIE1931xy sRGB.svg">File:CIE1931xy_sRGB.svg</a>. The open circles look a bit silly here...
<a href="//commons.wikimedia.org/wiki/User:BenRG" title="User:BenRG">BenRG</a>
Own work, inspired by <a href="//commons.wikimedia.org/wiki/File:CIExy1931.png" title="File:CIExy1931.png">File:CIExy1931.png</a>