The method to retrieve the trademark color image is to contact the Trademark Office, search the trademark database, and find the trademark registration agent.

1. Contact the Trademark Office: You can request to review and obtain color images of your trademark by submitting a written application to your local Trademark Office (such as the State Intellectual Property Office).

2. Search the trademark database: You can log in to the trademark database of the State Intellectual Property Office or other relevant institutions to search, find and download color pictures of your trademark. If you forget the trademark name or trademark number, you can search it through the relevant search tools provided by the Trademark Office.

3. Find the trademark registration agency: Trademark registration agencies usually retain trademark color pictures for customers. You can retrieve the trademark color pictures by contacting the agency.