bl.svg 292 Bytes
<svg xmlns="http://www.w3.org/2000/svg" id="flag-icon-css-bl" viewBox="0 0 640 480">
  <g fill-rule="evenodd" stroke-width="1pt">
    <path fill="#fff" d="M0 0h640v480H0z"/>
    <path fill="#00267f" d="M0 0h213.3v480H0z"/>
    <path fill="#f31830" d="M426.7 0H640v480H426.7z"/>
  </g>
</svg>