h3{
font-size: 16px;
font-weight: 500;
display: inline-block;
color: #d6a736;
background-image: -webkit-linear-gradient(-45deg,#fae2a7 0%, #d6a736 40%, #d6a736 60%,#fae2a7 100%);
background-image: linear-gradient(-45deg,#fae2a7 0%, #d6a736 40%, #d6a736 60%,#fae2a7 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}
HTML
<h3>文字颜色渐变</h3>