Answers for "which property used to change the color of svg with css"

set svg background color css

/* You can use CSS masks, With the 'mask' property, you create a mask that is applied to an element. */
background-color: red;
-webkit-mask-image: url(icon.svg);
mask-image: url(icon.svg);

change svg color

<style type="text/css">
.myicon {
        display: inline-block;
        filter: invert(39%) sepia(16%) saturate(614%) hue-rotate(156deg) brightness(97%) contrast(89%);
}

.sidebar .nav-link:hover .myicon {
        filter: brightness(0) invert(1);
}
</style>
<div class="sidebar">
  <li class="nav-item">
	<a class="nav-link" href="#"><img src="icon.svg" class="myicon"/> MyPage</a>
  </li>
</div>

<!--Hex Color To CSS Filter Converter-->
https://isotropic.co/tool/hex-color-to-css-filter/