<p>Africa with elevation contours at 0 (khaki), 25 (greenyellow), 50 (limegreen), 100 (green), 250 (darksalmon), 500 (firebrick), 1000 (darkmagenta) and 2000 (darkblue) m elevations. 
</p>
  <table><tbody><tr><td>0 m</td><td style="background-color:khaki">  </td></tr><tr><td>25 m</td><td style="background-color:greenyellow">  </td></tr><tr><td>50 m</td><td style="background-color:khaki">  </td></tr><tr><td>100 m</td><td style="background-color:limegreen">  </td></tr><tr><td>250 m</td><td style="background-color:darksalmon">  </td></tr><tr><td>500 m</td><td style="background-color:firebrick">  </td></tr><tr><td>1000 m</td><td style="background-color:darkmagenta">  </td></tr><tr><td>2000 m</td><td style="background-color:darkblue">  </td></tr></tbody></table>
Base data from SRTM - NASA
2017
SRTM Raster data resampled-reduced, run through QGIS to produce vector contours which were then smoothed/simplified and converted to SVG by mapshaper.org and SVG optimized by <a rel="nofollow" class="external free" href="https://www.ofoct.com/image-converter/svg-optimizer.html">https://www.ofoct.com/image-converter/svg-optimizer.html</a>