how to use ui color code example

Example 1: coreui react change background color

$body-bg:    $gray-900;
$body-color: $gray-600;

Example 2: coreui primary color

<p class="text-primary">.text-primary</p>
<p class="text-secondary">.text-secondary</p>
<p class="text-success">.text-success</p>
<p class="text-danger">.text-danger</p>
<p class="text-warning">.text-warning</p>
<p class="text-info">.text-info</p>
<p class="text-light">.text-light</p>
<p class="text-dark">.text-dark</p>