Aurora Background

A subtle Aurora or Southern Lights background for your website.

Background lights are cool you know.

And this, is chemical burn.

Installation

Install util dependencies

npm i motion clsx tailwind-merge

Add util file

lib/utils.ts

import { ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";
 
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

Configure animations for Tailwind CSS

globals.css

@import "tailwindcss";
 
@theme inline {
  --animate-aurora: aurora 60s linear infinite;
  @keyframes aurora {
    from {
      background-position:
        50% 50%,
        50% 50%;
    }
    to {
      background-position:
        350% 50%,
        350% 50%;
    }
  }
}

Copy the source code

components/ui/aurora-background.tsx

"use client";
import { cn } from "@/lib/utils";
import React, { ReactNode } from "react";
 
interface AuroraBackgroundProps extends React.HTMLProps<HTMLDivElement> {
  children: ReactNode;
  showRadialGradient?: boolean;
}
 
export const AuroraBackground = ({
  className,
  children,
  showRadialGradient = true,
  ...props
}: AuroraBackgroundProps) => {
  return (
    <main>
      <div
        className={cn(
          "transition-bg relative flex h-[100vh] flex-col items-center justify-center bg-zinc-50 text-slate-950 dark:bg-zinc-900",
          className,
        )}
        {...props}
      >
        <div
          className="absolute inset-0 overflow-hidden"
          style={
            {
              "--aurora":
                "repeating-linear-gradient(100deg,#3b82f6_10%,#a5b4fc_15%,#93c5fd_20%,#ddd6fe_25%,#60a5fa_30%)",
              "--dark-gradient":
                "repeating-linear-gradient(100deg,#000_0%,#000_7%,transparent_10%,transparent_12%,#000_16%)",
              "--white-gradient":
                "repeating-linear-gradient(100deg,#fff_0%,#fff_7%,transparent_10%,transparent_12%,#fff_16%)",
 
              "--blue-300": "#93c5fd",
              "--blue-400": "#60a5fa",
              "--blue-500": "#3b82f6",
              "--indigo-300": "#a5b4fc",
              "--violet-200": "#ddd6fe",
              "--black": "#000",
              "--white": "#fff",
              "--transparent": "transparent",
            } as React.CSSProperties
          }
        >
          <div
            //   I'm sorry but this is what peak developer performance looks like // trigger warning
            className={cn(
              `after:animate-aurora pointer-events-none absolute -inset-[10px] [background-image:var(--white-gradient),var(--aurora)] [background-size:300%,_200%] [background-position:50%_50%,50%_50%] opacity-50 blur-[10px] invert filter will-change-transform [--aurora:repeating-linear-gradient(100deg,var(--blue-500)_10%,var(--indigo-300)_15%,var(--blue-300)_20%,var(--violet-200)_25%,var(--blue-400)_30%)] [--dark-gradient:repeating-linear-gradient(100deg,var(--black)_0%,var(--black)_7%,var(--transparent)_10%,var(--transparent)_12%,var(--black)_16%)] [--white-gradient:repeating-linear-gradient(100deg,var(--white)_0%,var(--white)_7%,var(--transparent)_10%,var(--transparent)_12%,var(--white)_16%)] after:absolute after:inset-0 after:[background-image:var(--white-gradient),var(--aurora)] after:[background-size:200%,_100%] after:[background-attachment:fixed] after:mix-blend-difference after:content-[""] dark:[background-image:var(--dark-gradient),var(--aurora)] dark:invert-0 after:dark:[background-image:var(--dark-gradient),var(--aurora)]`,
 
              showRadialGradient &&
                `[mask-image:radial-gradient(ellipse_at_100%_0%,black_10%,var(--transparent)_70%)]`,
            )}
          ></div>
        </div>
        {children}
      </div>
    </main>
  );
};

Props

Prop	Type	Default	Description
children	ReactNode	N/A	The content to be displayed within the AuroraBackground component.
className	string	N/A	Additional CSS classes to apply to the component for styling.
showRadialGradient	boolean	true	Determines whether a radial gradient effect is applied to the background.
...props	object	N/A	Any other props that should be passed to the div element of the component.

This component is ideated and initialized by Akshith Pottigari

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