颜色转换�?/title>  <meta name="description" content="颜色转换�? /> <meta name="keywords" content="color-converter,converter,tools" /> <meta name="author" content="WebUtils" /> <meta name="robots" content="index, follow" /> <link rel="canonical" href="https://essays4u.net/tools/converter/color-converter.html" />  <meta property="og:title" content="颜色转换�? /> <meta property="og:description" content="颜色转换�? /> <meta property="og:type" content="website" /> <meta property="og:url" content="https://essays4u.net/tools/converter/color-converter.html" /> <meta property="og:site_name" content="WebUtils" /> <meta property="og:locale" content="zh_CN" /> <meta property="og:image" content="https://essays4u.net/social-preview.png" />  <meta name="twitter:card" content="summary" /> <meta name="twitter:title" content="颜色转换�? /> <meta name="twitter:description" content="颜色转换�? /> <meta name="twitter:image" content="https://essays4u.net/social-preview.png" /> <style> :root { --bg-deep: #0a0a0f; --bg-surface: #12121a; --bg-card: #1a1a24; --bg-input: #0e0e14; --text-primary: #e8e8ed; --text-secondary: #8888a0; --text-muted: #55556a; --border-subtle: #2a2a3a; --border-strong: #3a3a4a; --accent-cyan: #00f5d4; --accent-magenta: #f72585; --accent-green: #10b981; --accent-red: #f43f5e; --accent-yellow: #fbbf24; --accent-blue: #4cc9f0; --accent-purple: #7b2cbf; --radius-sm: 4px; --radius-md: 8px; --radius-lg: 12px; --font-sans: "Space Grotesk", -apple-system, blinkmacsystemfont, "Segoe UI", roboto, sans-serif; --font-mono: "JetBrains Mono", "Courier New", monospace; --shadow: 0 2px 8px rgba(0, 0, 0, 0.3); } [data-theme="light"] { --bg-deep: #fafafa; --bg-surface: #fff; --bg-card: #fff; --bg-input: #f5f5f5; --text-primary: #1a1a1a; --text-secondary: #666; --text-muted: #999; --border-subtle: #e5e5e5; --border-strong: #d5d5d5; --accent-cyan: #00d4b8; --accent-magenta: #e63975; --shadow: 0 2px 8px rgba(0, 0, 0, 0.08); } .theme-toggle { position: fixed; top: 1rem; right: 1rem; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border-subtle); background: var(--color-bg-card); cursor: pointer; font-size: 1.2rem; z-index: 100; transition: all 0.2s; display: flex; align-items: center; justify-content: center; } .theme-toggle:hover { transform: scale(1.1); } * { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: var(--font-sans); font-size: 16px; line-height: 1.6; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; padding: 20px; } .container { max-width: 500px; margin: 0 auto; } h1 { color: white; text-align: center; margin-bottom: 30px; font-size: 28px; } .card { background: white; border-radius: 20px; padding: 30px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3); } .color-preview { width: 100%; height: 100px; border-radius: 12px; margin-bottom: 20px; border: 2px solid #e0e0e0; } .input-group { margin-bottom: 15px; } label { display: block; margin-bottom: 6px; font-weight: 500; color: #666; font-size: 14px; } input { width: 100%; padding: 12px; border: 2px solid #e0e0e0; border-radius: 8px; font-size: 14px; font-family: var(--font-mono); } input:focus { outline: none; border-color: #667eea; } input[type="color"] { height: 50px; padding: 5px; cursor: pointer; } .breadcrumb { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 0.85rem; padding: 8px 14px; background: var(--color-bg-surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); margin-bottom: 20px; } .breadcrumb a { color: var(--color-text-secondary); text-decoration: none; transition: color 0.2s ease; } .breadcrumb a:hover { color: var(--color-accent-cyan); } .breadcrumb a:hover { text-decoration: underline; } .breadcrumb span { color: #999; margin: 0 5px; } </style>  <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=JetBrains+Mono:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap" rel="stylesheet" /> </head> <body> <nav class="breadcrumb"> <a href="../../index.html">首页</a> <span>�?/span> 颜色转换�? </nav> <div class="container"> <h1>🎨 颜色转换�?/h1> <div class="card"> <div class="color-preview" id="preview" style="background: #667eea"></div> <div class="input-group"> <label for="input------">颜色选择�?/label> <input type="color" id="picker" value="#667eea" aria-label="颜色选择�? /> </div> <div class="input-group"> <label for="input-hex">HEX</label> <input type="text" id="hex" value="#667eea" aria-label="文本输入�? placeholder="请输入文本输入框" /> </div> <div class="input-group"> <label for="input-rgb">RGB</label> <input type="text" id="rgb" value="rgb(102, 126, 234)" aria-label="文本输入�? placeholder="请输入文本输入框" /> </div> <div class="input-group"> <label for="input-hsl">HSL</label> <input type="text" id="hsl" value="hsl(229, 76%, 66%)" aria-label="文本输入�? placeholder="请输入文本输入框" /> </div> </div> </div> <script> function hexToRgb(hex) { const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); return result ? { r: parseInt(result[1], 16), g: parseInt(result[2], 16), b: parseInt(result[3], 16) } : null; } function rgbToHsl(r, g, b) { r /= 255; g /= 255; b /= 255; const max = Math.max(r, g, b), min = Math.min(r, g, b); let h, s, l = (max + min) / 2; if (max === min) { h = s = 0; } else { const d = max - min; s = l > 0.5 ? d / (2 - max - min) : d / (max + min); switch (max) { case r: h = ((g - b) / d + (g < b ? 6 : 0)) / 6; break; case g: h = ((b - r) / d + 2) / 6; break; case b: h = ((r - g) / d + 4) / 6; break; } } return { h: Math.round(h * 360), s: Math.round(s * 100), l: Math.round(l * 100) }; } function updateFromHex(hex) { if (!/^#[0-9a-f]{6}$/i.test(hex)) return; const rgb = hexToRgb(hex); const hsl = rgbToHsl(rgb.r, rgb.g, rgb.b); document.getElementById("preview").style.background = hex; document.getElementById("picker").value = hex; document.getElementById("rgb").value = "rgb(" + rgb.r + ", " + rgb.g + ", " + rgb.b + ")"; document.getElementById("hsl").value = "hsl(" + hsl.h + ", " + hsl.s + "%, " + hsl.l + "%)"; } document.getElementById("picker").addEventListener("input", (e) => { document.getElementById("hex").value = e.target.value; updateFromHex(e.target.value); }); document .getElementById("hex") .addEventListener("input", (e) => updateFromHex(e.target.value)); </script> </body> </html>