hex color
RGB color
HSL color
Alpha value 0.6
.hex { background-color: #86DEFA; } .rgb { } .hsl { } .transparency { }
<ul> <li class="hex">hex color</li> <li class="rgb">RGB color</li> <li class="hsl">HSL color</li> <li class="transparency">Alpha value 0.6</li> </ul>