Retrieve the color from an SVG shape
1 2 <rect id="c1" x="510" 3 y="120" width="20px" height="20px" fill="pink" stroke="blue" onclick="setPenColour(evt)"/> 4 <![CDATA[ 5 function setPenColour(evt) { 6 m_pen_colour = evt.target.getAttribute('fill'); 7 } 8 ]]>
Reference:
Tutorials - SVG [kevlindev.com]
Tutorials - SVG - Events [kevlindev.com]