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HTML
<header>
<h3>Scheme</h3>
<form id="theme-switcher">
<div>
<input checked type="radio" id="auto" name="theme" value="auto">
<label for="auto">Auto</label>
</div>
<div>
<input type="radio" id="light" name="theme" value="light">
<label for="light">Light</label>
</div>
<div>
<input type="radio" id="dark" name="theme" value="dark">
<label for="dark">Dark</label>
</div>
<div>
<input type="radio" id="dim" name="theme" value="dim">
<label for="dim">Dim</label>
</div>
</form>
</header>
<main>
<section>
<div class="surface-samples">
<div class="surface1 rad-shadow">1</div>
<div class="surface2 rad-shadow">2</div>
<div class="surface3 rad-shadow">3</div>
<div class="surface4 rad-shadow">4</div>
</div>
</section>
<section>
<div class="text-samples">
<h1 class="text1">
<span class="swatch brand rad-shadow"></span>
Brand
</h1>
<h1 class="text1">
<span class="swatch text1 rad-shadow"></span>
Text Color 1
</h1>
<h1 class="text2">
<span class="swatch text2 rad-shadow"></span>
Text Color 2
</h1>
<br>
<p class="text1">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
<p class="text2">Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
</div>
</section>
</main>
CSS
* {
/* brand foundation */
--brand-hue: 200;
--brand-saturation: 100%;
--brand-lightness: 50%;
/* light */
--brand-light: hsl(var(--brand-hue) var(--brand-saturation) var(--brand-lightness));
--text1-light: hsl(var(--brand-hue) var(--brand-saturation) 10%);
--text2-light: hsl(var(--brand-hue) 30% 30%);
--surface1-light: hsl(var(--brand-hue) 25% 90%);
--surface2-light: hsl(var(--brand-hue) 20% 99%);
--surface3-light: hsl(var(--brand-hue) 20% 92%);
--surface4-light: hsl(var(--brand-hue) 20% 85%);
--surface-shadow-light: var(--brand-hue) 10% 20%;
--shadow-strength-light: .02;
/* dark */
--brand-dark: hsl(
var(--brand-hue)
calc(var(--brand-saturation) / 2)
calc(var(--brand-lightness) / 1.5)
);
--text1-dark: hsl(var(--brand-hue) 15% 85%);
--text2-dark: hsl(var(--brand-hue) 5% 65%);
--surface1-dark: hsl(var(--brand-hue) 10% 10%);
--surface2-dark: hsl(var(--brand-hue) 10% 15%);
--surface3-dark: hsl(var(--brand-hue) 5% 20%);
--surface4-dark: hsl(var(--brand-hue) 5% 25%);
--surface-shadow-dark: var(--brand-hue) 50% 3%;
--shadow-strength-dark: .8;
/* dim */
--brand-dim: hsl(
var(--brand-hue)
calc(var(--brand-saturation) / 1.25)
calc(var(--brand-lightness) / 1.25)
);
--text1-dim: hsl(var(--brand-hue) 15% 75%);
--text2-dim: hsl(var(--brand-hue) 10% 61%);
--surface1-dim: hsl(var(--brand-hue) 10% 20%);
--surface2-dim: hsl(var(--brand-hue) 10% 25%);
--surface3-dim: hsl(var(--brand-hue) 5% 30%);
--surface4-dim: hsl(var(--brand-hue) 5% 35%);
--surface-shadow-dim: var(--brand-hue) 30% 13%;
--shadow-strength-dim: .2;
}
:root {
color-scheme: light;
/* set defaults */
--brand: var(--brand-light);
--text1: var(--text1-light);
--text2: var(--text2-light);
--surface1: var(--surface1-light);
--surface2: var(--surface2-light);
--surface3: var(--surface3-light);
--surface4: var(--surface4-light);
--surface-shadow: var(--surface-shadow-light);
--shadow-strength: var(--shadow-strength-light);
}
@media (prefers-color-scheme: dark) {
:root {
color-scheme: dark;
--brand: var(--brand-dark);
--text1: var(--text1-dark);
--text2: var(--text2-dark);
--surface1: var(--surface1-dark);
--surface2: var(--surface2-dark);
--surface3: var(--surface3-dark);
--surface4: var(--surface4-dark);
--surface-shadow: var(--surface-shadow-dark);
--shadow-strength: var(--shadow-strength-dark);
}
}
[color-scheme="light"] {
color-scheme: light;
--brand: var(--brand-light);
--text1: var(--text1-light);
--text2: var(--text2-light);
--surface1: var(--surface1-light);
--surface2: var(--surface2-light);
--surface3: var(--surface3-light);
--surface4: var(--surface4-light);
--surface-shadow: var(--surface-shadow-light);
--shadow-strength: var(--shadow-strength-light);
}
[color-scheme="dark"] {
color-scheme: dark;
--brand: var(--brand-dark);
--text1: var(--text1-dark);
--text2: var(--text2-dark);
--surface1: var(--surface1-dark);
--surface2: var(--surface2-dark);
--surface3: var(--surface3-dark);
--surface4: var(--surface4-dark);
--surface-shadow: var(--surface-shadow-dark);
--shadow-strength: var(--shadow-strength-dark);
}
[color-scheme="dim"] {
color-scheme: dark;
--brand: var(--brand-dim);
--text1: var(--text1-dim);
--text2: var(--text2-dim);
--surface1: var(--surface1-dim);
--surface2: var(--surface2-dim);
--surface3: var(--surface3-dim);
--surface4: var(--surface4-dim);
--surface-shadow: var(--surface-shadow-dim);
--shadow-strength: var(--shadow-strength-dim);
}
/* READY TO USE! */
.brand {
color: var(--brand);
background-color: var(--brand);
}
.surface1 {
background-color: var(--surface1);
color: var(--text2);
}
.surface2 {
background-color: var(--surface2);
color: var(--text2);
}
.surface3 {
background-color: var(--surface3);
color: var(--text1);
}
.surface4 {
background-color: var(--surface4);
color: var(--text1);
}
.text1 {
color: var(--text1);
}
p.text1 {
font-weight: 200;
}
.text2 {
color: var(--text2);
}
JS
const switcher = document.querySelector('#theme-switcher')
const doc = document.firstElementChild
switcher.addEventListener('input', e =>
setTheme(e.target.value))
const setTheme = theme =>
doc.setAttribute('color-scheme', theme)
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2023-07-05 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-07-05 UTC."],[],[]]