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Background Gradient Animation

A smooth and elegant background gradient animation that changes the gradient position over time.

Gradients X Animations

Installation

Install dependencies

npm i framer-motion clsx tailwind-merge

Add util file

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

Add these animations and keyframes to your tailwind.config.ts file

tailwind.config.ts
module.exports = {
  content: ["./src/**/*.{ts,tsx}"],
  darkMode: "class",
  theme: {
    extend: {
      animation: {
        first: "moveVertical 30s ease infinite",
        second: "moveInCircle 20s reverse infinite",
        third: "moveInCircle 40s linear infinite",
        fourth: "moveHorizontal 40s ease infinite",
        fifth: "moveInCircle 20s ease infinite",
      },
      keyframes: {
        moveHorizontal: {
          "0%": {
            transform: "translateX(-50%) translateY(-10%)",
          },
          "50%": {
            transform: "translateX(50%) translateY(10%)",
          },
          "100%": {
            transform: "translateX(-50%) translateY(-10%)",
          },
        },
        moveInCircle: {
          "0%": {
            transform: "rotate(0deg)",
          },
          "50%": {
            transform: "rotate(180deg)",
          },
          "100%": {
            transform: "rotate(360deg)",
          },
        },
        moveVertical: {
          "0%": {
            transform: "translateY(-50%)",
          },
          "50%": {
            transform: "translateY(50%)",
          },
          "100%": {
            transform: "translateY(-50%)",
          },
        },
      },
    },
  },
  plugins: [],
};

Copy the source code

components/ui/background-gradient-animation.tsx

"use client";
import { cn } from "@/lib/utils";
import { useEffect, useRef, useState } from "react";
 
export const BackgroundGradientAnimation = ({
  gradientBackgroundStart = "rgb(108, 0, 162)",
  gradientBackgroundEnd = "rgb(0, 17, 82)",
  firstColor = "18, 113, 255",
  secondColor = "221, 74, 255",
  thirdColor = "100, 220, 255",
  fourthColor = "200, 50, 50",
  fifthColor = "180, 180, 50",
  pointerColor = "140, 100, 255",
  size = "80%",
  blendingValue = "hard-light",
  children,
  className,
  interactive = true,
  containerClassName,
}: {
  gradientBackgroundStart?: string;
  gradientBackgroundEnd?: string;
  firstColor?: string;
  secondColor?: string;
  thirdColor?: string;
  fourthColor?: string;
  fifthColor?: string;
  pointerColor?: string;
  size?: string;
  blendingValue?: string;
  children?: React.ReactNode;
  className?: string;
  interactive?: boolean;
  containerClassName?: string;
}) => {
  const interactiveRef = useRef<HTMLDivElement>(null);
 
  const [curX, setCurX] = useState(0);
  const [curY, setCurY] = useState(0);
  const [tgX, setTgX] = useState(0);
  const [tgY, setTgY] = useState(0);
  useEffect(() => {
    document.body.style.setProperty(
      "--gradient-background-start",
      gradientBackgroundStart
    );
    document.body.style.setProperty(
      "--gradient-background-end",
      gradientBackgroundEnd
    );
    document.body.style.setProperty("--first-color", firstColor);
    document.body.style.setProperty("--second-color", secondColor);
    document.body.style.setProperty("--third-color", thirdColor);
    document.body.style.setProperty("--fourth-color", fourthColor);
    document.body.style.setProperty("--fifth-color", fifthColor);
    document.body.style.setProperty("--pointer-color", pointerColor);
    document.body.style.setProperty("--size", size);
    document.body.style.setProperty("--blending-value", blendingValue);
  }, []);
 
  useEffect(() => {
    function move() {
      if (!interactiveRef.current) {
        return;
      }
      setCurX(curX + (tgX - curX) / 20);
      setCurY(curY + (tgY - curY) / 20);
      interactiveRef.current.style.transform = `translate(${Math.round(
        curX
      )}px, ${Math.round(curY)}px)`;
    }
 
    move();
  }, [tgX, tgY]);
 
  const handleMouseMove = (event: React.MouseEvent<HTMLDivElement>) => {
    if (interactiveRef.current) {
      const rect = interactiveRef.current.getBoundingClientRect();
      setTgX(event.clientX - rect.left);
      setTgY(event.clientY - rect.top);
    }
  };
 
  const [isSafari, setIsSafari] = useState(false);
  useEffect(() => {
    setIsSafari(/^((?!chrome|android).)*safari/i.test(navigator.userAgent));
  }, []);
 
  return (
    <div
      className={cn(
        "h-screen w-screen relative overflow-hidden top-0 left-0 bg-[linear-gradient(40deg,var(--gradient-background-start),var(--gradient-background-end))]",
        containerClassName
      )}
    >
      <svg className="hidden">
        <defs>
          <filter id="blurMe">
            <feGaussianBlur
              in="SourceGraphic"
              stdDeviation="10"
              result="blur"
            />
            <feColorMatrix
              in="blur"
              mode="matrix"
              values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 18 -8"
              result="goo"
            />
            <feBlend in="SourceGraphic" in2="goo" />
          </filter>
        </defs>
      </svg>
      <div className={cn("", className)}>{children}</div>
      <div
        className={cn(
          "gradients-container h-full w-full blur-lg",
          isSafari ? "blur-2xl" : "[filter:url(#blurMe)_blur(40px)]"
        )}
      >
        <div
          className={cn(
            `absolute [background:radial-gradient(circle_at_center,_var(--first-color)_0,_var(--first-color)_50%)_no-repeat]`,
            `[mix-blend-mode:var(--blending-value)] w-[var(--size)] h-[var(--size)] top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)]`,
            `[transform-origin:center_center]`,
            `animate-first`,
            `opacity-100`
          )}
        ></div>
        <div
          className={cn(
            `absolute [background:radial-gradient(circle_at_center,_rgba(var(--second-color),_0.8)_0,_rgba(var(--second-color),_0)_50%)_no-repeat]`,
            `[mix-blend-mode:var(--blending-value)] w-[var(--size)] h-[var(--size)] top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)]`,
            `[transform-origin:calc(50%-400px)]`,
            `animate-second`,
            `opacity-100`
          )}
        ></div>
        <div
          className={cn(
            `absolute [background:radial-gradient(circle_at_center,_rgba(var(--third-color),_0.8)_0,_rgba(var(--third-color),_0)_50%)_no-repeat]`,
            `[mix-blend-mode:var(--blending-value)] w-[var(--size)] h-[var(--size)] top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)]`,
            `[transform-origin:calc(50%+400px)]`,
            `animate-third`,
            `opacity-100`
          )}
        ></div>
        <div
          className={cn(
            `absolute [background:radial-gradient(circle_at_center,_rgba(var(--fourth-color),_0.8)_0,_rgba(var(--fourth-color),_0)_50%)_no-repeat]`,
            `[mix-blend-mode:var(--blending-value)] w-[var(--size)] h-[var(--size)] top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)]`,
            `[transform-origin:calc(50%-200px)]`,
            `animate-fourth`,
            `opacity-70`
          )}
        ></div>
        <div
          className={cn(
            `absolute [background:radial-gradient(circle_at_center,_rgba(var(--fifth-color),_0.8)_0,_rgba(var(--fifth-color),_0)_50%)_no-repeat]`,
            `[mix-blend-mode:var(--blending-value)] w-[var(--size)] h-[var(--size)] top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)]`,
            `[transform-origin:calc(50%-800px)_calc(50%+800px)]`,
            `animate-fifth`,
            `opacity-100`
          )}
        ></div>
 
        {interactive && (
          <div
            ref={interactiveRef}
            onMouseMove={handleMouseMove}
            className={cn(
              `absolute [background:radial-gradient(circle_at_center,_rgba(var(--pointer-color),_0.8)_0,_rgba(var(--pointer-color),_0)_50%)_no-repeat]`,
              `[mix-blend-mode:var(--blending-value)] w-full h-full -top-1/2 -left-1/2`,
              `opacity-70`
            )}
          ></div>
        )}
      </div>
    </div>
  );
};

Props

Prop NameTypeDefault ValueDescription
gradientBackgroundStartstring"rgb(108, 0, 162)"The starting color of the background gradient, specified as an RGB value.
gradientBackgroundEndstring"rgb(0, 17, 82)"The ending color of the background gradient, specified as an RGB value.
firstColorstring"18, 113, 255"The first color used in the animation, specified as an RGB value without the rgb tag.
secondColorstring"221, 74, 255"The second color used in the animation, specified as an RGB value without the rgb tag.
thirdColorstring"100, 220, 255"The third color used in the animation, specified as an RGB value without the rgb tag.
fourthColorstring"200, 50, 50"The fourth color used in the animation, specified as an RGB value without the rgb tag.
fifthColorstring"180, 180, 50"The fifth color used in the animation, specified as an RGB value without the rgb tag.
pointerColorstring"140, 100, 255"The color of the pointer, specified as an RGB value without the rgb tag.
sizestring"80%"The size of the animated elements.
blendingValuestring"hard-light"The blending mode used for the animated elements.
childrenReact.ReactNodeundefinedChildren components to be rendered inside the component.
classNamestringundefinedAdditional CSS class for styling.
interactivebooleantrueDetermines if the animation is interactive or not.
containerClassNamestringundefinedAdditional CSS class for the container.

Special thanks to this video that inspired this component.

A product by Aceternity
Building in public at @mannupaaji