Background Gradient Animation

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

card background gradient special call to action

Gradients X Animations

Installation

Install dependencies

npm i framer-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));
}

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 Name	Type	Default Value	Description
gradientBackgroundStart	string	"rgb(108, 0, 162)"	The starting color of the background gradient, specified as an RGB value.
gradientBackgroundEnd	string	"rgb(0, 17, 82)"	The ending color of the background gradient, specified as an RGB value.
firstColor	string	"18, 113, 255"	The first color used in the animation, specified as an RGB value without the rgb tag.
secondColor	string	"221, 74, 255"	The second color used in the animation, specified as an RGB value without the rgb tag.
thirdColor	string	"100, 220, 255"	The third color used in the animation, specified as an RGB value without the rgb tag.
fourthColor	string	"200, 50, 50"	The fourth color used in the animation, specified as an RGB value without the rgb tag.
fifthColor	string	"180, 180, 50"	The fifth color used in the animation, specified as an RGB value without the rgb tag.
pointerColor	string	"140, 100, 255"	The color of the pointer, specified as an RGB value without the rgb tag.
size	string	"80%"	The size of the animated elements.
blendingValue	string	"hard-light"	The blending mode used for the animated elements.
children	React.ReactNode	undefined	Children components to be rendered inside the component.
className	string	undefined	Additional CSS class for styling.
interactive	boolean	true	Determines if the animation is interactive or not.
containerClassName	string	undefined	Additional CSS class for the container.

Special thanks to this video that inspired this component.

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