Aruta,
фокус-покус
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
</head>
<body>
<div id="elem"></div>
<script>
let activeColor = '#220718';
elem.style.color = activeColor;
elem.innerHTML = elem.style.color;
</script>
</body>
</html>