A map showing only the single-most popular party in each borough for the 2019 European Parliament election in the Greater London at-large region. Gradation means the saturation of colour matches such popularity.
<p>The colours are:
</p>
<style data-mw-deduplicate="TemplateStyles:r714798474">.mw-parser-output .div-col{margin-top:.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:thin solid #AAA}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col">
<p><b>Labour Party</b>
</p>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#ee928f;color:#202122;text-align:center;"> </div> 20%-30%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#e86d6a;color:#202122;text-align:center;"> </div> 30%-40%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#e24944;color:#202122;text-align:center;"> </div> 40%-50%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#dc241f;color:#202122;text-align:center;"> </div> 50%-60%</div>
<p><b>Liberal Democrats</b>
</p>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#fdd38d;color:#202122;text-align:center;"> </div> 20%-30%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#fcc466;color:#202122;text-align:center;"> </div> 30%-40%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#fbb540;color:#202122;text-align:center;"> </div> 40%-50%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#faa61a;color:#202122;text-align:center;"> </div> 50%-60%</div>
<p><b>Brexit Party</b>
</p>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#89dbe7;color:#202122;text-align:center;"> </div> 20%-30%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#61cedf;color:#202122;text-align:center;"> </div> 30%-40%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#3ac2d7;color:#202122;text-align:center;"> </div> 40%-50%</div>
<div class="legend" style="direction:ltr;line-height:23px;"><div class="legend-content" style="display:inline-block;vertical-align:top;box-sizing:border-box;width:34px;height:23px;overflow:hidden;font-size:15px;border:thin solid #333;background:#12b6cf;color:#202122;text-align:center;"> </div> 50%-60%</div>
</div>
<a href="//commons.wikimedia.org/wiki/User:Twotwofourtysix" title="User:Twotwofourtysix">Twotwofourtysix</a>, created from <a href="//commons.wikimedia.org/wiki/File:2019_European_Parliament_election_in_the_United_Kingdom_area_results_(Greater_London).svg" title="File:2019 European Parliament election in the United Kingdom area results (Greater London).svg">File:2019_European_Parliament_election_in_the_United_Kingdom_area_results_(Greater_London).svg</a> by <a href="//commons.wikimedia.org/wiki/User:Mirrorme22" title="User:Mirrorme22">User:Mirrorme22</a> (which contains Ordnance Survey data © Crown copyright and database right).
CC BY-SA 3.0
This work is derived from <a href="//commons.wikimedia.org/wiki/File:2019_European_Parliament_election_in_the_United_Kingdom_area_results_(Greater_London).svg" title="File:2019 European Parliament election in the United Kingdom area results (Greater London).svg">File:2019_European_Parliament_election_in_the_United_Kingdom_area_results_(Greater_London).svg</a> by <a href="//commons.wikimedia.org/wiki/User:Mirrorme22" title="User:Mirrorme22">User:Mirrorme22</a> (which contains <a href="https://en.wikipedia.org/wiki/Ordnance_Survey" class="extiw" title="w:Ordnance Survey">Ordnance Survey</a> <a rel="nofollow" class="external text" href="https://www.ordnancesurvey.co.uk/opendatadownload/products.html">OpenData</a>). Election data from <a rel="nofollow" class="external text" href="https://lewisham.gov.uk/mayorandcouncil/elections/results/election-results-2019/european-election-2019-results/european-election-2019---london-wide-results">Lewisham Council Website</a>.