CSSFontPaletteValuesRule: fontFamily property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨November 2022⁩.

The read-only fontFamily property of the CSSFontPaletteValuesRule interface lists the font families the rule can be applied to. The font families must be named families; generic families like courier are not valid.

Value

A string containing a space-separated list of the font families on which the rule can be applied

Examples

Read the associated font family

This example first defines an @import and an @font-palette-values at-rule. Then it reads the @font-palette-values rule and displays its name. The MDN live sample infrastructure combines all the CSS blocks in the example into a single inline style with the id css-output, so we first use document.getElementById() to find that sheet. The palette will be the second CSSRule in that stylesheet. So, rules[1] returns a CSSFontPaletteValuesRule object, from which we can access fontFamily.

HTML

html

<pre id="log">
The @font-palette-values at-rule's applies to the font families:</pre
>

CSS

css

@import "https://fonts.googleapis.com/css2?family=Bungee+Spice";

@font-palette-values --Alternate {
  font-family: "Bungee Spice";
  override-colors:
    0 #00ffbb,
    1 #007744;
}

.alternate {
  font-palette: --Alternate;
}

JavaScript

const log = document.getElementById("log");

const rules = document.getElementById("css-output").sheet.cssRules;
const fontPaletteValuesRule = rules[1]; // a CSSFontPaletteValuesRule interface
log.textContent += ` ${fontPaletteValuesRule.fontFamily}`;

Result

Specifications

Specification
CSS Fonts Module Level 4 # dom-cssfontpalettevaluesrule-fontfamily

Browser compatibility

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This page was last modified on ⁨Oct 17, 2025⁩ by MDN contributors.

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