Rainbow color gradient background, vibrant rainbow colours swirl for poster cover web header design

---

Size: 6000px × 3333px
Location:
Photo credit: © Zoonar/Nadezhda Soboleva / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: abstract, art, backdrop, background, banner, beautiful, blue, blur, blurred, blurry, bright, burst, color, colorful, colors, colours, cover, creative, design, fantasy, fashion, flow, fusion, gradient, grain, grainy, green, illustration, intense, liquid, neon, noise, orange, pattern, poster, psychedelic, purple, rainbow, red, smooth, soft, spectrum, splash, swirl, vibes, vibrant, vivid, wave, web, yellow