send/tailwind.config.js

const colors = {
  transparent: 'transparent',

  black: '#000000',
  'grey-90': '#0c0c0d',
  'grey-80': '#2a2a2e',
  'grey-70': '#38383d',
  'grey-60': '#4a4a4f',
  'grey-50': '#737373',
  grey: '#b1b1b3',
  'grey-40': '#b1b1b3',
  'grey-30': '#d7d7db',
  'grey-banner': '#f0f0f4',
  'grey-transparent': 'hsla(250, 13%, 9%, .2)',
  'grey-20': '#ededf0',
  'grey-10': '#f9f9fa',
  white: '#ffffff',

  'red-90': '#3e0200',
  'red-80': '#5a0002',
  'red-70': '#a4000f',
  'red-60': '#d70022',
  red: '#d70022',
  'red-50': '#ff0039',
  // unspec
  'red-40': '#ff3363',
  'red-30': '#ff99aa',

  'orange-90': '#3e1300',
  'orange-80': '#712b00',
  'orange-70': '#a44900',
  'orange-60': '#d76e00',
  'orange-50': '#ff9400',
  // unspec
  'orange-40': '#ffb24c',
  'orange-30': '#ffd399',

  'yellow-90': '#3e2800',
  'yellow-80': '#715100',
  'yellow-70': '#a47f00',
  'yellow-60': '#d7b600',
  yellow: '#d7b600',
  'yellow-50': '#ffe900',
  'yellow-40': '#ffed4c',
  'yellow-30': '#fff599',

  // 'green-darkest': '#003706',
  // 'green-darker': '#006504',
  // 'green-dark': '#058b00',
  // green: '#12bc00',
  // 'green-light': '#51d88a',
  // 'green-lighter': '#a2f5bf',
  // 'green-lightest': '#e3fcec',

  // 'teal-darkest': '#0d3331',
  // 'teal-darker': '#20504f',
  // 'teal-dark': '#38a89d',
  // teal: '#4dc0b5',
  // 'teal-light': '#64d5ca',
  // 'teal-lighter': '#a0f0ed',
  // 'teal-lightest': '#e8fffe',

  'blue-90': '#000f40',
  'blue-80': '#002275',
  'blue-70': '#003eaa',
  'blue-60': '#0060df',
  'blue-50': '#0a84ff',
  blue: '#0a84ff',
  'blue-40': '#45a1ff',
  'blue-30': '#99ccff',
  'blue-20': '#cce6ff',

  'ink-90': '#0f1126',
  'ink-80': '#202340',
  'ink-70': '#363959',

  // 'indigo-darkest': '#191e38',
  // 'indigo-darker': '#2f365f',
  // 'indigo-dark': '#5661b3',
  // indigo: '#6574cd',
  // 'indigo-light': '#7886d7',
  // 'indigo-lighter': '#b2b7ff',
  // 'indigo-lightest': '#e6e8ff',

  'purple-90': '#25003e',
  'purple-80': '#440071',
  'purple-70': '#6200a4',
  'purple-60': '#8000d7',
  'purple-50': '#9400ff',
  'purple-40': '#ad3bff',
  'purple-30': '#c069ff',
  'purple-20': '#d7a3ff',

  // 'pink-darkest': '#451225',
  // 'pink-darker': '#6f213f',
  // 'pink-dark': '#eb5286',
  // pink: '#f66d9b',
  // 'pink-light': '#fa7ea8',
  // 'pink-lighter': '#ffbbca',
  // 'pink-lightest': '#ffebef',
  cloud: 'rgba(255, 255, 255, 0.8)',
  violet: 'hsl(258, 57%, 35%)'
};

module.exports = {
  theme: {
    colors: colors,
    screens: {
      sm: '576px',
      md: '768px',
      lg: '992px',
      xl: '1200px',
      dark: { raw: '(prefers-color-scheme: dark)' }
    },
    fontFamily: {
      sans: [
        'Inter',
        'system-ui',
        'BlinkMacSystemFont',
        '-apple-system',
        'Segoe UI',
        'Roboto',
        'Oxygen',
        'Ubuntu',
        'Cantarell',
        'Fira Sans',
        'Droid Sans',
        'Helvetica Neue',
        'sans-serif'
      ],
      serif: [
        'Constantia',
        'Lucida Bright',
        'Lucidabright',
        'Lucida Serif',
        'Lucida',
        'DejaVu Serif',
        'Bitstream Vera Serif',
        'Liberation Serif',
        'Georgia',
        'serif'
      ],
      mono: [
        'Menlo',
        'Monaco',
        'Consolas',
        'Liberation Mono',
        'Courier New',
        'monospace'
      ]
    },
    fontSize: {
      xs: '.75rem', // 12px
      sm: '.875rem', // 14px
      base: '1rem', // 16px
      lg: '1.125rem', // 18px
      xl: '1.25rem', // 20px
      '2xl': '1.5rem', // 24px
      '3xl': '2rem', // 32px
      '4xl': '2.25rem', // 36px
      '5xl': '3rem' // 48px
    },
    fontWeight: {
      hairline: 100,
      thin: 200,
      light: 300,
      normal: 400,
      medium: 500,
      semibold: 600,
      bold: 700,
      extrabold: 800,
      black: 900
    },
    lineHeight: {
      none: 1,
      tight: 1.25,
      normal: 1.5,
      loose: 1.75
    },
    letterSpacing: {
      tight: '-0.05em',
      normal: '0',
      wide: '0.05em'
    },
    textColor: colors,
    backgroundColor: colors,
    backgroundSize: {
      auto: 'auto',
      cover: 'cover',
      contain: 'contain'
    },
    borderWidth: {
      default: '1px',
      '0': '0',
      '2': '2px',
      '4': '4px',
      '8': '8px'
    },
    borderColor: global.Object.assign({ default: colors['grey-30'] }, colors),
    borderRadius: {
      none: '0',
      sm: '.125rem',
      default: '.25rem',
      lg: '.5rem',
      xl: '1rem',
      full: '9999px'
    },
    width: {
      auto: 'auto',
      px: '1px',
      '0': '0',
      '1': '0.25rem',
      '2': '0.5rem',
      '3': '0.75rem',
      '4': '1rem',
      '5': '1.25rem',
      '6': '1.5rem',
      '8': '2rem',
      '10': '2.5rem',
      '12': '3rem',
      '16': '4rem',
      '24': '6rem',
      '32': '8rem',
      '48': '12rem',
      '64': '16rem',
      '128': '32rem',
      '1/2': '50%',
      '1/3': '33.33333%',
      '2/3': '66.66667%',
      '1/4': '25%',
      '3/4': '75%',
      '1/5': '20%',
      '2/5': '40%',
      '3/5': '60%',
      '4/5': '80%',
      '1/6': '16.66667%',
      '5/6': '83.33333%',
      full: '100%',
      screen: '100vw'
    },
    height: {
      auto: 'auto',
      px: '1px',
      '0': '0',
      '1': '0.25rem',
      '2': '0.5rem',
      '3': '0.75rem',
      '4': '1rem',
      '5': '1.25rem',
      '6': '1.5rem',
      '8': '2rem',
      '10': '2.5rem',
      '12': '3rem',
      '16': '4rem',
      '24': '6rem',
      '32': '8rem',
      '48': '12rem',
      '64': '16rem',
      full: '100%',
      screen: '100vh'
    },
    flex: {
      '1': '1 1 0%',
      auto: '1 1 auto',
      initial: '0 1 auto',
      none: 'none',
      half: '0 0 50%',
      full: '0 0 100%'
    },
    minWidth: {
      '0': '0',
      full: '100%'
    },
    minHeight: {
      '0': '0',
      full: '100%',
      screen: '100vh'
    },
    maxWidth: {
      xs: '20rem',
      sm: '30rem',
      md: '40rem',
      lg: '50rem',
      xl: '60rem',
      '2xl': '70rem',
      '3xl': '80rem',
      '4xl': '90rem',
      '5xl': '100rem',
      full: '100%'
    },
    maxHeight: {
      full: '100%',
      'half-screen': '50vh',
      screen: '100vh'
    },
    padding: {
      px: '1px',
      '0': '0',
      '1': '0.25rem',
      '2': '0.5rem',
      '3': '0.75rem',
      '4': '1rem',
      '5': '1.25rem',
      '6': '1.5rem',
      '8': '2rem',
      '10': '2.5rem',
      '12': '3rem',
      '16': '4rem',
      '20': '5rem',
      '24': '6rem',
      '32': '8rem'
    },
    margin: {
      auto: 'auto',
      px: '1px',
      '0': '0',
      '1': '0.25rem',
      '2': '0.5rem',
      '3': '0.75rem',
      '4': '1rem',
      '5': '1.25rem',
      '6': '1.5rem',
      '8': '2rem',
      '10': '2.5rem',
      '12': '3rem',
      '16': '4rem',
      '20': '5rem',
      '24': '6rem',
      '32': '8rem',
      '-px': '-1px',
      '-1': '-0.25rem',
      '-2': '-0.5rem',
      '-3': '-0.75rem',
      '-4': '-1rem',
      '-5': '-1.25rem',
      '-6': '-1.5rem',
      '-8': '-2rem',
      '-10': '-2.5rem',
      '-12': '-3rem',
      '-16': '-4rem',
      '-20': '-5rem',
      '-24': '-6rem',
      '-32': '-8rem'
    },
    boxShadow: {
      default: '0 2px 4px 0 rgba(0,0,0,0.10)',
      md: '0 4px 8px 0 rgba(0,0,0,0.12), 0 2px 4px 0 rgba(0,0,0,0.08)',
      lg: '0 15px 30px 0 rgba(0,0,0,0.11), 0 5px 15px 0 rgba(0,0,0,0.08)',
      inner: 'inset 0 2px 4px 0 rgba(0,0,0,0.06)',
      outline: '0 0 0 3px rgba(52,144,220,0.5)',
      none: 'none',
      cloud: '0 0 5rem 5rem white',
      btn:
        'inset 0 -6px 12px 0 rgba(0,70,144,0.25), 0 4px 6px 0 rgba(34,0,51,0.04), 0 1px 10px 0 rgba(7,48,114,0.12), 0 2px 8px -1px rgba(14,13,26,0.08)'
    },
    opacity: {
      '0': '0',
      '25': '.25',
      '50': '.5',
      '75': '.75',
      '100': '1'
    },
    fill: {
      current: 'currentColor'
    },
    stroke: {
      current: 'currentColor'
    },

    zIndex: {
      auto: 'auto',
      '0': 0,
      '10': 10,
      '20': 20,
      '30': 30,
      '40': 40,
      '50': 50
    }
  },

  variants: {
    appearance: ['responsive'],
    backgroundAttachment: ['responsive'],
    backgroundColor: ['responsive', 'hover', 'focus'],
    backgroundPosition: ['responsive'],
    backgroundRepeat: ['responsive'],
    backgroundSize: ['responsive'],
    borderCollapse: [],
    borderColor: ['responsive', 'hover', 'focus'],
    borderRadius: ['responsive'],
    borderStyle: ['responsive'],
    borderWidth: ['responsive'],
    cursor: ['responsive'],
    display: ['responsive'],
    flexDirection: ['responsive'],
    flexWrap: ['responsive'],
    alignItems: ['responsive'],
    alignSelf: ['responsive'],
    alignContent: ['responsive'],
    justifyContent: ['responsive'],
    flex: ['responsive'],
    flexGrow: ['responsive'],
    flexShrink: ['responsive'],
    float: ['responsive'],
    fontFamily: ['responsive'],
    fontWeight: ['responsive', 'hover', 'focus'],
    height: ['responsive'],
    lineHeight: ['responsive'],
    listStylePosition: ['responsive'],
    listStyleType: ['responsive'],
    margin: ['responsive'],
    maxHeight: ['responsive'],
    maxWidth: ['responsive'],
    minHeight: ['responsive'],
    minWidth: ['responsive'],
    negativeMargin: ['responsive'],
    opacity: ['responsive', 'hover'],
    outline: ['focus'],
    overflow: ['responsive'],
    padding: ['responsive'],
    pointerEvents: ['responsive'],
    position: ['responsive'],
    inset: ['responsive'],
    resize: ['responsive'],
    boxShadow: ['responsive', 'hover', 'focus'],
    fill: [],
    stroke: [],
    tableLayout: ['responsive'],
    textAlign: ['responsive'],
    textColor: ['responsive', 'hover', 'focus'],
    fontSize: ['responsive'],
    fontStyle: ['responsive', 'hover', 'focus'],
    fontSmoothing: ['responsive', 'hover', 'focus'],
    textDecoration: ['responsive', 'hover', 'focus'],
    textTransform: ['responsive', 'hover', 'focus'],
    letterSpacing: ['responsive'],
    userSelect: ['responsive'],
    verticalAlign: ['responsive'],
    visibility: ['responsive'],
    whitespace: ['responsive'],
    wordBreak: ['responsive'],
    width: ['responsive'],
    zIndex: ['responsive']
  },
  corePlugins: {
    container: false
  },
  plugins: []
};