Text with stroke (border) and no fill (color)

<svg width="150" height="100" xmlns="http://www.w3.org/2000/svg">
  <rect width="100%" height="100%" border="black"
     style="fill:white;stroke-width:3;stroke:black" />
  <text x="75" y="60" font-size="30" text-anchor="middle" stroke="red" fill="none">Text</text>
</svg>