Coloring SVG image

HTML

<img class="check" src="http://google.github.io/material-design-icons/action/svg/ic_verified_user_24px.svg" alt="">
    
    <svg width="4cm" height="4cm" viewBox="0 0 400 400"
     xmlns="http://www.w3.org/2000/svg" version="1.1" id="triangle">
  <path d="M 100 400 L 100 100 L 400 400 z"
         stroke="blue" stroke-width="3" />
</svg>

CSS

.check {
    color: #08922b;
}
#triangle {
    fill:blue;
}