Design animated, glowing Aurora mesh backgrounds. Export production-ready pure CSS or Tailwind code instantly.
/* CSS Aurora Background */
.aurora-wrapper {
position: relative;
width: 100%;
height: 100%;
background-color: #0f172a;
overflow: hidden;
}
.aurora-blob {
position: absolute;
filter: blur(120px);
opacity: 0.5;
animation: aurora-float 10s infinite alternate ease-in-out;
will-change: transform, opacity, filter;
}
.aurora-blob:nth-child(1) { top: -10%; left: -10%; width: 50%; height: 50%; background: #8b5cf6; border-radius: 50%; animation-delay: 0s; }
.aurora-blob:nth-child(2) { top: 40%; right: -20%; width: 60%; height: 60%; background: #3b82f6; border-radius: 40%; animation-delay: -2s; }
.aurora-blob:nth-child(3) { bottom: -20%; left: 20%; width: 50%; height: 60%; background: #10b981; border-radius: 60%; animation-delay: -4s; }
.aurora-blob:nth-child(4) { top: 10%; right: 20%; width: 40%; height: 40%; background: #f43f5e; border-radius: 50%; animation-delay: -6s; }
@keyframes aurora-float {
0% { transform: scale(1) translate(0px, 0px); }
33% { transform: scale(1.1) translate(30px, -50px); }
66% { transform: scale(0.9) translate(-20px, 20px); }
100% { transform: scale(1.05) translate(40px, 40px); }
}
/* Accessibility: Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
.aurora-blob {
animation: none;
}
}<div class="relative w-full h-screen bg-slate-950 overflow-hidden">
<div class="absolute top-[-10%] left-[-10%] w-1/2 h-1/2 rounded-full mix-blend-screen opacity-50 blur-[120px] bg-[#8b5cf6] animate-pulse will-change-[transform,opacity,filter]"></div>
<div class="absolute top-[40%] right-[-20%] w-[60%] h-[60%] rounded-[40%] mix-blend-screen opacity-50 blur-[120px] bg-[#3b82f6] animate-pulse will-change-[transform,opacity,filter]" style="animation-delay: 2s;"></div>
<div class="absolute bottom-[-20%] left-[20%] w-1/2 h-[60%] rounded-[60%] mix-blend-screen opacity-50 blur-[120px] bg-[#10b981] animate-pulse will-change-[transform,opacity,filter]" style="animation-delay: 4s;"></div>
<div class="absolute top-[10%] right-[20%] w-[40%] h-[40%] rounded-full mix-blend-screen opacity-50 blur-[120px] bg-[#f43f5e] animate-pulse will-change-[transform,opacity,filter]" style="animation-delay: 1s;"></div>
<div class="relative z-10 flex items-center justify-center w-full h-full">
<h1 class="text-white text-5xl font-bold">Hello Aurora</h1>
</div>
</div>
The "Aurora" effect has become a staple of 2026 web design, seen on top-tier SaaS landing pages and AI dashboards. Unlike traditional linear gradients, aurora backgrounds use heavily blurred, overlapping shapes to create an organic, glowing depth. This generator calculates the optimal CSS filter: blur() and animation keyframes so you don't have to guess the math.
An aurora gradient is typically made using multiple absolute-positioned elements with radial gradients or solid colors, heavily blurred using the CSS filter: blur() property, and animated with @keyframes to simulate the movement of the Northern Lights.
Yes! The generator provides a copy-and-paste Tailwind HTML structure utilizing arbitrary values for blurs and background colors, making it seamless to drop into Next.js, Astro, or any Tailwind-enabled project.
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