4-color linear gradient. Flat CSS -- what's pictured above is exactly what you copy, no curve, distortion, or mesh effects hidden in it.
Looking for a full styled background instead? Browse free wallpapers →
background: linear-gradient(90deg, #081420 0.0%, #2D1B4E 33.3%, #E8B23C 66.7%, #FF6B9D 100.0%);