export const hexToRgb = hex => {
  // Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF")
  const shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i

  hex = hex.replace(shorthandRegex, (m, r, g, b) => {
    return r + r + g + g + b + b
  })

  const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)
  
  return result ? `${Number.parseInt(result[1], 16)},${Number.parseInt(result[2], 16)},${Number.parseInt(result[3], 16)}` : null
}
