webHTML/p3Shine.html at main · error420notfound/webHTML · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>P3 + Perceived Brightness Test</title>

<style>
  body {
    background: #0e0e0e;
    color: #ccc;
    font-family: system-ui, sans-serif;
    padding: 40px;
  }

  h1 {
    margin-bottom: 40px;
    font-size: 28px;
    color: #888;
  }

  .row {
    display: flex;
    gap: 40px;
    margin-bottom: 60px;
  }

  .card {
    width: 260px;
  }

  .label {
    font-size: 12px;
    color: #777;
    margin-bottom: 12px;
  }

  .button {
    padding: 14px 20px;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    cursor: default;
  }

  /* ---------- BASE (sRGB) ---------- */
  .base {
    background: #ff6a00;
    color: black;
  }

  /* ---------- ENHANCED (filters + glow) ---------- */
  .enhanced {
    background: #ff6a00;
    color: black;

    filter: brightness(115%) contrast(110%) saturate(115%);

    box-shadow:
      0 0 8px rgba(255,120,0,0.5),
      0 0 24px rgba(255,80,0,0.4);
  }

  /* ---------- P3 ONLY ---------- */
  .p3 {
    background: color(display-p3 1 0.4 0);
    color: black;
  }

  /* ---------- P3 + ENHANCED ---------- */
  .p3-enhanced {
    background: color(display-p3 1 0.4 0);
    color: black;

    filter: brightness(115%) contrast(110%) saturate(120%);

    box-shadow:
      0 0 10px rgba(255,120,0,0.6),
      0 0 32px rgba(255,80,0,0.5);
  }

  /* headline test */
  .headline {
    font-size: 42px;
    font-weight: 700;
    margin-top: 20px;
  }

  .p3-headline {
    color: color(display-p3 1 0.3 0);
  }

  .enhanced-headline {
    color: #ff6a00;
    text-shadow:
      0 0 6px rgba(255,120,0,0.6),
      0 0 20px rgba(255,80,0,0.4);
  }

  .p3-enhanced-headline {
    color: color(display-p3 1 0.3 0);
    text-shadow:
      0 0 8px rgba(255,120,0,0.7),
      0 0 28px rgba(255,80,0,0.5);
  }

  .status {
    margin-top: 40px;
    font-size: 13px;
    color: #666;
  }
</style>
</head>

<body>

<h1>Perceived Brightness / P3 Test</h1>

<div class="row">
  <div class="card">
    <div class="label">Base (sRGB)</div>
    <div class="button base">Button</div>
    <div class="headline">Headline</div>
  </div>

  <div class="card">
    <div class="label">Enhanced (Glow + Filters)</div>
    <div class="button enhanced">Button</div>
    <div class="headline enhanced-headline">Headline</div>
  </div>

  <div class="card">
    <div class="label">P3 Only</div>
    <div class="button p3">Button</div>
    <div class="headline p3-headline">Headline</div>
  </div>

  <div class="card">
    <div class="label">P3 + Enhanced</div>
    <div class="button p3-enhanced">Button</div>
    <div class="headline p3-enhanced-headline">Headline</div>
  </div>
</div>

<div class="status" id="status"></div>

<script>
// detect P3 support
const supportsP3 = CSS.supports('color', 'color(display-p3 1 0 0)');

document.getElementById('status').textContent =
  supportsP3
    ? 'Display-P3 is supported on this device/browser.'
    : 'Display-P3 is NOT supported. P3 colors are falling back to sRGB.';
</script>

</body>
</html>