useTheme

@coinbase/cds-web@8.64.0

Returns the currently active theme including color schemes, spacing, typography, and other design tokens.

import { useTheme } from '@coinbase/cds-web'

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Related components

• ThemeProvider

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useTheme hook

The useTheme hook provides access to the current theme and activeColorScheme.

The color and spectrum objects automatically change based on the activeColorScheme.

const theme = useTheme();
theme.activeColorScheme; // "light" or "dark"
theme.spectrum; // Resolves to lightSpectrum or darkSpectrum, depends on activeColorScheme
theme.color; // Resolves to lightColor or darkColor, depends on activeColorScheme
theme.color.bgPrimary; // "rgb(0,82,255)" or "rgb(87,139,250)", depends on activeColorScheme
theme.space[2]; // 16
theme.borderRadius[200]; // 8
theme.fontSize.display3; // "2.5rem"

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Tip

For best performance, prefer to use CSS Variables instead of the useTheme hook whenever possible. Read more about CSS Variables here →

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Basic usage

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Live Code

function Example() {
  const theme = useTheme();

  return (
    <VStack gap={2}>
      <Box padding={3} background="bgAlternate" borderRadius={300}>
        <Text font="headline">Current Color Scheme: {theme.activeColorScheme}</Text>
      </Box>

      <VStack padding={3} background="bgAlternate" borderRadius={300}>
        <Text font="headline">Theme Colors</Text>
        <Text>Background: {theme.color.bg}</Text>
        <Text>Foreground: {theme.color.fg}</Text>
        <Text>Background Primary: {theme.color.bgPrimary}</Text>
        <Text>Foreground Primary: {theme.color.fgPrimary}</Text>
      </VStack>
    </VStack>
  );
}

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Styling with Theme values

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Live Code

function Example() {
  const theme = useTheme();

  const styles = {
    container: {
      padding: theme.space[3],
      backgroundColor: theme.color.bgAlternate,
      borderRadius: theme.borderRadius[300],
      boxShadow: theme.shadow.elevation1,
    },
    text: {
      fontSize: theme.fontSize.body,
      lineHeight: theme.lineHeight.body,
      fontFamily: theme.fontFamily.body,
      color: theme.color.fgPrimary,
    },
  };

  return (
    <Box style={styles.container}>
      <Text style={styles.text}>Styled using theme values</Text>
    </Box>
  );
}

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Color scheme detection

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Live Code

function Example() {
  const theme = useTheme();
  const isDarkMode = theme.activeColorScheme === 'dark';

  return (
    <Box gap={0.5} borderRadius={300} alignItems="baseline">
      <Text as="span">This box adapts to {isDarkMode ? 'dark' : 'light'} mode</Text>
      <Text as="span" font="headline" color={isDarkMode ? 'fgMuted' : 'fgPrimary'}>
        with adaptive text colors
      </Text>
    </Box>
  );
}