Bioluminescent Glow Button - Free UI Component

Button Color #0ea5e9

Glow/Aura Color #38bdf8

Text Color #ffffff

Button Label Launch Application

Glow Breath (px) 25

Pulse Duration (sec) 3

Rounding (px) 10

Vertical Padding (rem) 1

Horizontal Padding (rem) 2.5

Font Size (rem) 1.1

Bioluminescent Glow Button

A sophisticated button featuring a 'bioluminescent' breathing glow effect. The aura subtly expands and contracts, creating a sense of life and high-end tech aesthetic.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Glow Animation Button</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap" rel="stylesheet">
    <style>
        /* -- Variables ------------------------------------------------- */
        :root {
            --primary: {{primaryColor}};         /* Main Button Color */
            --glow: {{glowColor}};               /* Animated Glow Color */
            --text: {{textColor}};               /* Button Text Color */
            --radius: {{borderRadius}}px;        /* Corner Rounding */
            --v-pad: {{vPadding}}rem;            /* Top/Bottom Padding */
            --h-pad: {{hPadding}}rem;            /* Left/Right Padding */
            --font-size: {{fontSize}}rem;        /* Text Size */
            --spread: {{glowSpread}}px;          /* Maximum Glow Breath */
            --speed: {{animationSpeed}}s;        /* Glow Cycle Duration */
            --page-bg: #0f172a;                  /* Preview Background */
        }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
            font-family: 'Plus Jakarta Sans', sans-serif;
            background-color: var(--page-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            color: #fff;
        }

/* -- Button Implementation --------------------------------------- */
        .btn-glow {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: var(--v-pad) var(--h-pad);
            font-size: var(--font-size);
            font-weight: 700;
            color: var(--text);
            background: var(--primary);
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            text-decoration: none;
            transition: all 0.3s ease;
            outline: none;
            z-index: 1;
        }

/* The Animated Glow Aura */
        .btn-glow::after {
            content: '';
            position: absolute;
            top: -2px; left: -2px; right: -2px; bottom: -2px;
            background: var(--glow);
            border-radius: calc(var(--radius) + 2px);
            z-index: -1;
            filter: blur(var(--spread));
            opacity: 0.6;
            animation: breathe var(--speed) ease-in-out infinite;
        }

@keyframes breathe {
            0%, 100% { 
                filter: blur(calc(var(--spread) * 0.5));
                opacity: 0.4;
                transform: scale(0.98);
            }
            50% { 
                filter: blur(var(--spread));
                opacity: 0.8;
                transform: scale(1.02);
            }
        }

.btn-glow:hover {
            transform: translateY(-2px);
            filter: brightness(1.1);
        }

.btn-glow:hover::after {
            animation: breathe calc(var(--speed) * 0.5) ease-in-out infinite;
            opacity: 1;
        }

.btn-glow:active {
            transform: translateY(0) scale(0.98);
        }

</style>
</head>
<body>

<button class="btn-glow">
        {{buttonText}}
    </button>

</body>
</html>