How to use the tailwindcss/defaultTheme.colors function in tailwindcss

lineHeight: defaultTheme.lineHeight.normal,
      fontSize: defaultTheme.fontSize.base,
      borderColor: defaultTheme.borderColor.default,
      borderWidth: defaultTheme.borderWidth.default,
      borderRadius: defaultTheme.borderRadius.default,
      backgroundColor: defaultTheme.colors.white,
      focusBorderColor: defaultTheme.colors.blue[400],
      focusBoxShadow: defaultTheme.boxShadow.outline,
      boxShadow: defaultTheme.boxShadow.none,
      checkboxSize: '1em',
      radioSize: '1em',
      checkboxIcon: `<svg xmlns="http://www.w3.org/2000/svg" fill="#fff" viewBox="0 0 16 16"><path d="M5.707 7.293a1 1 0 0 0-1.414 1.414l2 2a1 1 0 0 0 1.414 0l4-4a1 1 0 0 0-1.414-1.414L7 8.586 5.707 7.293z"></path></svg>`,
      radioIcon: `<svg xmlns="http://www.w3.org/2000/svg" fill="#fff" viewBox="0 0 16 16"><circle r="3" cy="8" cx="8"></circle></svg>`,
      checkedColor: defaultTheme.colors.blue[500],
      selectIcon: `<svg fill="${
        defaultTheme.colors.gray[500]
      }" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M15.3 9.3a1 1 0 0 1 1.4 1.4l-4 4a1 1 0 0 1-1.4 0l-4-4a1 1 0 0 1 1.4-1.4l3.3 3.29 3.3-3.3z"></path></svg>`,
      selectIconOffset: defaultTheme.spacing[2],
      selectIconSize: '1.5em',
    },
    spinner: theme =&gt; ({
      default: {
        color: '#dae1e7', // color you want to make the spinner
        size: '1em', // size of the spinner (used for both width and height)
        border: '2px', // border-width of the spinner (shouldn't be bigger than half the spinner's size)
        speed: '500ms', // the speed at which the spinner should rotate
      },
      sm: {
        color: '#dae1e7',
        size: '2.5em',
        border: '2px',
        speed: '500ms',

// Configuration docs:
// https://tailwindcss.com/docs/configuration
//
// Default configuration:
// https://github.com/tailwindcss/tailwindcss/blob/master/stubs/defaultConfig.stub.js

const defaultTheme = require('tailwindcss/defaultTheme');

const brand = {
    purple: "#512668",
    orange: "#ee975c",
    green: "#2fc89f",
    blue: "#52a6da",
}

const white = defaultTheme.colors.white;
const black = defaultTheme.colors.black;
const gray = defaultTheme.colors.gray;
const red = defaultTheme.colors.red;
const yellow = defaultTheme.colors.yellow;
const transparent = defaultTheme.colors.transparent;

const purple = {
    100: "#d7cddc",
    200: "#a48bb3",
    300: "#745687",
    400: "#654276",
    500: brand.purple,
    600: "#421d57",
    700: "#371a47",
    800: "#2a1337",
    900: "#180b1f",

// https://tailwindcss.com/docs/configuration
//
// Default configuration:
// https://github.com/tailwindcss/tailwindcss/blob/master/stubs/defaultConfig.stub.js

const defaultTheme = require('tailwindcss/defaultTheme');

const brand = {
    purple: "#512668",
    orange: "#ee975c",
    green: "#2fc89f",
    blue: "#52a6da",
}

const white = defaultTheme.colors.white;
const black = defaultTheme.colors.black;
const gray = defaultTheme.colors.gray;
const red = defaultTheme.colors.red;
const yellow = defaultTheme.colors.yellow;
const transparent = defaultTheme.colors.transparent;

const purple = {
    100: "#d7cddc",
    200: "#a48bb3",
    300: "#745687",
    400: "#654276",
    500: brand.purple,
    600: "#421d57",
    700: "#371a47",
    800: "#2a1337",
    900: "#180b1f",
}

const defaultTheme = require('tailwindcss/defaultTheme')

module.exports = {
  theme: {
    colors: {
      ...defaultTheme.colors,
      orange: {
        500: '#ed8936',
      },
      gray: {
        100: '#f7fafc',
        200: '#edf2f7',
        300: '#e2e8f0',
        400: '#cbd5e0',
        500: '#a0aec0',
        600: '#718096',
        700: '#4a5568',
        800: '#2d3748',
        900: '#1a202c',
      },
      indigo: {
        100: '#e6e8ff',

'0': '0',
      '10': '10',
      '20': '20',
      '30': '30',
      '40': '40',
      '50': '50',
    },
    customForms: {
      horizontalPadding: defaultTheme.spacing[3],
      verticalPadding: defaultTheme.spacing[2],
      lineHeight: defaultTheme.lineHeight.normal,
      fontSize: defaultTheme.fontSize.base,
      borderColor: defaultTheme.borderColor.default,
      borderWidth: defaultTheme.borderWidth.default,
      borderRadius: defaultTheme.borderRadius.default,
      backgroundColor: defaultTheme.colors.white,
      focusBorderColor: defaultTheme.colors.blue[400],
      focusBoxShadow: defaultTheme.boxShadow.outline,
      boxShadow: defaultTheme.boxShadow.none,
      checkboxSize: '1em',
      radioSize: '1em',
      checkboxIcon: `<svg xmlns="http://www.w3.org/2000/svg" fill="#fff" viewBox="0 0 16 16"><path d="M5.707 7.293a1 1 0 0 0-1.414 1.414l2 2a1 1 0 0 0 1.414 0l4-4a1 1 0 0 0-1.414-1.414L7 8.586 5.707 7.293z"></path></svg>`,
      radioIcon: `<svg xmlns="http://www.w3.org/2000/svg" fill="#fff" viewBox="0 0 16 16"><circle r="3" cy="8" cx="8"></circle></svg>`,
      checkedColor: defaultTheme.colors.blue[500],
      selectIcon: `<svg fill="${
        defaultTheme.colors.gray[500]
      }" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M15.3 9.3a1 1 0 0 1 1.4 1.4l-4 4a1 1 0 0 1-1.4 0l-4-4a1 1 0 0 1 1.4-1.4l3.3 3.29 3.3-3.3z"></path></svg>`,
      selectIconOffset: defaultTheme.spacing[2],
      selectIconSize: '1.5em',
    },
    spinner: theme =&gt; ({
      default: {