tailwind.config.js

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

/** @type {import('tailwindcss').Config} */
export default {
  darkMode: ["class"],
  content: ["./src/**/*.{ts,tsx}"],
  fontFamily: {
    sans: ['"Geist Variable"', ...defaultTheme.fontFamily.sans]
  },
  theme: {
    extend: {
      borderRadius: {
        lg: "var(--radius)",
        md: "calc(var(--radius) - 2px)",
        sm: "calc(var(--radius) - 4px)"
      },

      colors: {
        background: "hsl(var(--background))",
        foreground: "hsl(var(--foreground))",
        card: {
          DEFAULT: "hsl(var(--card))",
          foreground: "hsl(var(--card-foreground))"
        },
        popover: {
          DEFAULT: "hsl(var(--popover))",
          foreground: "hsl(var(--popover-foreground))"
        },
        primary: {
          DEFAULT: "hsl(var(--primary))",
          foreground: "hsl(var(--primary-foreground))"
        },
        secondary: {
          DEFAULT: "hsl(var(--secondary))",
          foreground: "hsl(var(--secondary-foreground))"
        },
        muted: {
          DEFAULT: "hsl(var(--muted))",
          foreground: "hsl(var(--muted-foreground))"
        },
        accent: {
          DEFAULT: "hsl(var(--accent))",
          foreground: "hsl(var(--accent-foreground))"
        },
        destructive: {
          DEFAULT: "hsl(var(--destructive))",
          foreground: "hsl(var(--destructive-foreground))"
        },
        scene: {
          DEFAULT: "hsl(var(--scene))",
          foreground: "hsl(var(--scene-foreground))"
        },
        border: "hsl(var(--border))",
        input: "hsl(var(--input))",
        ring: "hsl(var(--ring))"
      }
    }
  },
  plugins: [addVariablesForColors, require("tailwindcss-animate")]
};

function addVariablesForColors({ addBase, theme }) {
  let allColors = flattenColorPalette(theme("colors"));
  let newVars = Object.fromEntries(
    Object.entries(allColors).map(([key, val]) => [`--${key}`, val])
  );

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