temp.js

const COLOR = {
  keys: {
    gray: 'gray',
    ultraLight: 'ultra-light',
    veryLight: 'very-light',
    bright: 'bright',
    veryDark: 'very-dark',
    veryDarkGray: 'very-dark-gray',
  },
  ranges: [
    'group-blue',
    'blue',
    'aqua',
    'green',
    'orange',
    'pink',
    'purple',
    this.keys.gray,
  ]
};

console.log(COLOR.keys.gray);