Renk Değerlerini Değiştirerek Sitene Uygun Hale getirebilirsin.
Kod: /* IE10 */
background-image: -ms-linear-gradient(top right, #975BBA 0%, #3C454E 100%);
/* Mozilla Firefox */
background-image: -moz-linear-gradient(top right, #975BBA 0%, #3C454E 100%);
/* Opera */
background-image: -o-linear-gradient(top right, #975BBA 0%, #3C454E 100%);
/* Webkit (Safari/Chrome 10) */
background-image: -webkit-gradient(linear, right top, left bottom, color-stop(0, #975BBA), color-stop(1, #3C454E));
/* Webkit (Chrome 11+) */
background-image: -webkit-linear-gradient(top right, #975BBA 0%, #3C454E 100%);
/* W3C , IE10 */
background-image: linear-gradient(to bottom left, #975BBA 0%, #3C454E 100%);
