What color is normal on the Hong Kong and Macau pass mobile phone?

Blue. According to the relevant information of the Hong Kong and Macao Pass, it is known that it is normal for the Hong Kong and Macao Pass to display blue on the mobile phone. The Hong Kong and Macau Travel Permit, commonly known as a two-way permit, is issued by the People's Republic of China and the Exit-Entry Administration (i.e., the National Immigration Administration, one agency with two brands) to residents of mainland China traveling to Hong Kong or Macau for private travel and visiting relatives. , travel documents for non-official activities such as business, training, employment, study abroad, etc.