Design Tokens Overview

Design tokens are the building blocks of Paste’s design system. They are named values that represent design decisions like colors, spacing, typography, and more.

What Are Design Tokens?

Design tokens are semantic names for design values that ensure consistency across your application:

// Instead of:
<Box padding="16px" color="#0263E0" />

// Use tokens:
<Box padding="space50" color="colorTextLink" />

Tokens provide:

Consistency: Use the same values everywhere
Maintainability: Change values in one place
Semantics: Names describe purpose, not appearance
Theming: Swap entire value sets easily

Token Categories

Color Tokens

Background Colors

Used for backgrounds of components and surfaces:

// Primary backgrounds
colorBackgroundPrimary
colorBackgroundPrimaryStrong
colorBackgroundPrimaryStronger
colorBackgroundPrimaryStrongest
colorBackgroundPrimaryWeakest

// Body backgrounds
colorBackgroundBody
colorBackgroundBodyInverse

// UI backgrounds
colorBackgroundDestructive
colorBackgroundWarning
colorBackgroundSuccess
colorBackgroundNeutral
colorBackgroundUser

Example:

<Box backgroundColor="colorBackgroundPrimary">
  Primary background
</Box>

Text Colors

Used for text content:

// Base text colors
colorText
colorTextWeak
colorTextWeaker
colorTextWeakest
colorTextInverse

// Interactive text
colorTextLink
colorTextLinkWeak
colorTextLinkStrong

// Status text
colorTextError
colorTextWarning
colorTextSuccess
colorTextNeutral

Example:

<Text color="colorTextWeak">
  Secondary text
</Text>

Border Colors

Used for borders and dividers:

colorBorder
colorBorderWeak
colorBorderWeaker
colorBorderWeakest
colorBorderStrong

colorBorderPrimary
colorBorderDestructive
colorBorderWarning
colorBorderSuccess

Example:

<Box
  borderStyle="solid"
  borderWidth="borderWidth10"
  borderColor="colorBorder"
>
  Bordered content
</Box>

Spacing Tokens

Consistent spacing throughout your UI:

space0   // 0
space10  // 0.125rem (2px)
space20  // 0.25rem (4px)
space30  // 0.5rem (8px)
space40  // 0.75rem (12px)
space50  // 1rem (16px)
space60  // 1.25rem (20px)
space70  // 1.5rem (24px)
space80  // 2rem (32px)
space90  // 2.5rem (40px)
space100 // 3rem (48px)
space110 // 4rem (64px)
space120 // 5rem (80px)
space130 // 6rem (96px)
// ... up to space200

// Negative spacing
spaceNegative10
spaceNegative20
// ... up to spaceNegative200

Example:

<Box
  padding="space50"
  marginBottom="space70"
  marginTop="spaceNegative20"
>
  Spaced content
</Box>

Typography Tokens

Font Families

fontFamilyText  // Main text font
fontFamilyCode  // Monospace font

Font Sizes

fontSize10   // 0.75rem (12px)
fontSize20   // 0.875rem (14px)
fontSize30   // 1rem (16px)
fontSize40   // 1.125rem (18px)
fontSize50   // 1.25rem (20px)
fontSize60   // 1.5rem (24px)
fontSize70   // 1.875rem (30px)
fontSize80   // 2.25rem (36px)
fontSize90   // 3rem (48px)
fontSize100  // 4rem (64px)
fontSize110  // 4.75rem (76px)

// Display sizes
fontSizeDisplay10  // 2rem (32px)
fontSizeDisplay20  // 3rem (48px)
fontSizeDisplay30  // 4rem (64px)

Font Weights

fontWeightLight     // 300
fontWeightNormal    // 400
fontWeightMedium    // 500
fontWeightSemibold  // 600
fontWeightBold      // 700
fontWeightExtrabold // 800

Line Heights

lineHeight0    // 0
lineHeight10   // 1rem (16px)
lineHeight20   // 1.25rem (20px)
lineHeight30   // 1.5rem (24px)
lineHeight40   // 1.75rem (28px)
lineHeight50   // 2rem (32px)
lineHeight60   // 2.25rem (36px)
lineHeight70   // 2.5rem (40px)
lineHeight80   // 3rem (48px)
lineHeight90   // 3.5rem (56px)
lineHeight100  // 4rem (64px)

Example:

<Text
  fontSize="fontSize30"
  fontWeight="fontWeightMedium"
  lineHeight="lineHeight30"
>
  Styled text
</Text>

Sizing Tokens

size0    // 0
size10   // 5.5rem (88px)
size20   // 12rem (192px)
size30   // 18.5rem (296px)
size40   // 25rem (400px)
size50   // 31.5rem (504px)
size60   // 38rem (608px)
size70   // 44.5rem (712px)
size80   // 51rem (816px)
size90   // 57.5rem (920px)
size100  // 64rem (1024px)
size110  // 70.5rem (1128px)
size120  // 79rem (1264px)

// Square sizes
sizeSquare0   // 0
sizeSquare10  // 0.125rem (2px)
sizeSquare20  // 0.25rem (4px)
sizeSquare30  // 0.5rem (8px)
sizeSquare40  // 0.75rem (12px)
sizeSquare50  // 1rem (16px)
// ... up to sizeSquare200

// Icon sizes
sizeIcon10  // 1rem (16px)
sizeIcon20  // 1.25rem (20px)
sizeIcon30  // 1.5rem (24px)
sizeIcon40  // 1.75rem (28px)
sizeIcon50  // 2rem (32px)
sizeIcon60  // 2.25rem (36px)
sizeIcon70  // 2.5rem (40px)
sizeIcon80  // 3rem (48px)

Example:

<Box width="size40" height="sizeSquare100">
  Sized box
</Box>

<ChevronDownIcon size="sizeIcon30" />

Border Tokens

Border Widths

borderWidth0   // 0
borderWidth10  // 1px
borderWidth20  // 2px
borderWidth30  // 4px

Border Radii

borderRadius0       // 0
borderRadius10      // 2px
borderRadius20      // 4px
borderRadius30      // 8px
borderRadius40      // 12px
borderRadius50      // 16px
borderRadius60      // 20px
borderRadius70      // 24px
borderRadius80      // 28px
borderRadiusCircle  // 50%
borderRadiusPill    // 100px

Example:

<Box
  borderWidth="borderWidth10"
  borderRadius="borderRadius20"
  borderStyle="solid"
  borderColor="colorBorder"
>
  Rounded border
</Box>

Shadow Tokens

shadow
shadowCard
shadowFocus
shadowFocusInverse
shadowFocusShadowBorder
shadowBorderPrimary
shadowBorderPrimaryStrong
shadowBorderDestructive
shadowBorderError
shadowBorderSuccess
shadowBorderWarning

Example:

<Card boxShadow="shadowCard">
  Card with shadow
</Card>

Z-Index Tokens

zIndex0    // 0
zIndex10   // 10
zIndex20   // 20
zIndex30   // 30
zIndex40   // 40
zIndex50   // 50
zIndex60   // 60
zIndex70   // 70
zIndex80   // 80
zIndex90   // 90
zIndex100  // 100

Example:

<Box position="absolute" zIndex="zIndex10">
  Layered content
</Box>

Using Tokens

In Components

Paste components accept tokens through props:

import { Box, Text, Button } from '@twilio-paste/core';

<Box
  backgroundColor="colorBackgroundBody"
  padding="space70"
  borderRadius="borderRadius30"
>
  <Text
    fontSize="fontSize30"
    color="colorText"
    marginBottom="space40"
  >
    Hello World
  </Text>
  <Button variant="primary">
    Click Me
  </Button>
</Box>

With useTheme Hook

Access raw token values:

import { useTheme } from '@twilio-paste/core/theme';

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

  return (
    <div style={{
      padding: theme.space.space50,
      color: theme.textColors.colorText,
      fontSize: theme.fontSizes.fontSize30,
    }}>
      Custom styled content
    </div>
  );
}

In Custom Themes

Override token values:

import { CustomizationProvider } from '@twilio-paste/core/customization';

<CustomizationProvider
  theme={{
    space: {
      space50: '1.5rem', // Change from 1rem to 1.5rem
    },
    textColors: {
      colorText: '#1A1A1A',
      colorTextLink: '#0066CC',
    },
    radii: {
      borderRadius20: '6px',
    },
  }}
>
  <App />
</CustomizationProvider>

Token Structure

Tokens follow a consistent naming pattern:

{category}{Element}{Variant}{State}

Examples:

colorBackgroundPrimaryStrong
- Category: color
- Element: Background
- Variant: Primary
- State: Strong
colorTextLinkDestructiveWeak
- Category: color
- Element: Text
- Variant: LinkDestructive
- State: Weak

Responsive Token Usage

Use tokens responsively with arrays:

<Box
  padding={['space30', 'space50', 'space70']}
  fontSize={['fontSize20', 'fontSize30', 'fontSize40']}
>
  Responsive content
</Box>

This applies:

space30 / fontSize20 at the smallest breakpoint
space50 / fontSize30 at the medium breakpoint
space70 / fontSize40 at the large breakpoint

Token References

Accessing Token Lists

Import token types for TypeScript support:

import type {
  BackgroundColorOptions,
  TextColorOptions,
  SpaceOptions,
  FontSizeOptions,
} from '@twilio-paste/style-props';

type MyProps = {
  bgColor: BackgroundColorOptions;
  spacing: SpaceOptions;
};

Token Values

Get actual token values:

import { useTheme } from '@twilio-paste/core/theme';

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

  console.log('Space 50:', theme.space.space50);              // "1rem"
  console.log('Primary BG:', theme.backgroundColors.colorBackgroundPrimary);
  console.log('Font size 30:', theme.fontSizes.fontSize30);   // "1rem"

  return <div>Check console</div>;
}

Best Practices

Use Semantic Tokens

// Good: Semantic meaning
<Text color="colorTextWeak">Secondary text</Text>

// Avoid: Color-based naming
<Text color="#666666">Secondary text</Text>

Follow the Scale

// Good: Use token scale
<Box padding="space50" margin="space40" />

// Avoid: Random values
<Box padding="17px" margin="13px" />

Stay Consistent

// Good: Consistent token usage
<Stack spacing="space50">
  <Box padding="space50" />
  <Box padding="space50" />
</Stack>

// Avoid: Mixed approaches
<Stack spacing="space50">
  <Box padding="16px" />
  <Box padding="space40" />
</Stack>

Reference Theme Tokens

When customizing:

// Good: Reference other tokens
<CustomizationProvider
  elements={{
    BUTTON: {
      padding: 'space50',
      borderRadius: 'borderRadius20',
    },
  }}
>

// Avoid: Hardcoded values
<CustomizationProvider
  elements={{
    BUTTON: {
      padding: '16px',
      borderRadius: '4px',
    },
  }}
>

Theme Variants

Different themes use different token values:

// Default theme
colorBackgroundPrimary: '#0263E0'

// Dark theme
colorBackgroundPrimary: '#1F7EE8'

The token name stays the same, but the value changes based on the active theme.

Data Visualization Tokens

Special tokens for charts and graphs:

colorDataVisualization01
colorDataVisualization02
colorDataVisualization03
// ... up to 10

Use these for consistent data representation:

const chartColors = [
  theme.dataVisualization.colorDataVisualization01,
  theme.dataVisualization.colorDataVisualization02,
  theme.dataVisualization.colorDataVisualization03,
];

Next Steps

Learn to Create Custom Themes with token overrides
Explore Style Props that accept tokens
Use the Theme Designer to experiment with tokens
Review CustomizationProvider for applying custom tokens

Theming

Advanced

Design Tokens Overview

What Are Design Tokens?

Token Categories

Color Tokens

Background Colors

Text Colors

Border Colors

Spacing Tokens

Typography Tokens

Font Families

Font Sizes

Font Weights

Line Heights

Sizing Tokens

Border Tokens

Border Widths

Border Radii

Shadow Tokens

Z-Index Tokens

Using Tokens

In Components

With useTheme Hook

In Custom Themes

Token Structure

Responsive Token Usage

Token References

Accessing Token Lists

Token Values

Best Practices

Use Semantic Tokens

Follow the Scale

Stay Consistent

Reference Theme Tokens

Theme Variants

Data Visualization Tokens

Next Steps

Build docs developers (and LLMs) love

Theming

Advanced

Documentation Index

​What Are Design Tokens?

​Token Categories

​Color Tokens

​Background Colors

​Text Colors

​Border Colors

​Spacing Tokens

​Typography Tokens

​Font Families

​Font Sizes

​Font Weights

​Line Heights

​Sizing Tokens

​Border Tokens

​Border Widths

​Border Radii

​Shadow Tokens

​Z-Index Tokens

​Using Tokens

​In Components

​With useTheme Hook

​In Custom Themes

​Token Structure

​Responsive Token Usage

​Token References

​Accessing Token Lists

​Token Values

​Best Practices

​Use Semantic Tokens

​Follow the Scale

​Stay Consistent

​Reference Theme Tokens

​Theme Variants

​Data Visualization Tokens

​Next Steps

Build docs developers (and LLMs) love

What Are Design Tokens?

Token Categories

Color Tokens

Background Colors

Text Colors

Border Colors

Spacing Tokens

Typography Tokens

Font Families

Font Sizes

Font Weights

Line Heights

Sizing Tokens

Border Tokens

Border Widths

Border Radii

Shadow Tokens

Z-Index Tokens

Using Tokens

In Components

With useTheme Hook

In Custom Themes

Token Structure

Responsive Token Usage

Token References

Accessing Token Lists

Token Values

Best Practices

Use Semantic Tokens

Follow the Scale

Stay Consistent

Reference Theme Tokens

Theme Variants

Data Visualization Tokens

Next Steps