Monochrome Cool Color Palette

:root {
  --color-1: #424242;
  --color-2: #616161;
  --color-3: #9E9E9E;
  --color-4: #BDBDBD;
  --color-5: #F5F5F5;
}

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'monochrome-cool': {
          '1': '#424242',
          '2': '#616161',
          '3': '#9E9E9E',
          '4': '#BDBDBD',
          '5': '#F5F5F5',
        },
      },
    },
  },
};