tailwind.config.js

const { nextui } = require("@nextui-org/react");
const defaultTheme = require("tailwindcss/defaultTheme");

// const colors = require("tailwindcss/colors");
const {
  default: flattenColorPalette,
} = require("tailwindcss/lib/util/flattenColorPalette");

/** @type {import('tailwindcss').Config} */
module.exports = {
  content: [
    "./src/**/*.{html,js}",
    "./node_modules/@nextui-org/theme/dist/**/*.{js,ts,jsx,tsx}",
  ],
  theme: {
    extend: {
      boxShadow: {
        input: `0px 2px 3px -1px rgba(0,0,0,0.1), 0px 1px 0px 0px rgba(25,28,33,0.02), 0px 0px 0px 1px rgba(25,28,33,0.08)`,
      },
    },
  },
  darkMode: "class",
  plugins: [
    nextui({
      themes: {
        dark: {
          colors: {
            background: "#000000",
            foreground: "#ecedee",
            primary: {
              foreground: "#000000",
              DEFAULT: "#ffffff",
            },
          },
        },
      },
    }),
    addVariablesForColors,
  ],
};

// This plugin adds each Tailwind color as a global CSS variable, e.g. var(--gray-200).
function addVariablesForColors({ addBase, theme }) {
  let allColors = flattenColorPalette(theme("colors"));
  let newVars = Object.fromEntries(
    Object.entries(allColors).map(([key, val]) => [`--${key}`, val])
  );

  addBase({
    ":root": newVars,
  });
}