During audiometry, the standard color code for the left ear is:

The standard color code for the left ear during audiometry is blue. This convention is crucial for ensuring clarity and consistency when documenting and interpreting audiometric results. The use of specific colors helps professionals readily identify which ear the test results pertain to, reducing the risk of errors in communication regarding hearing assessment.

In audiometric practices, red is commonly associated with the right ear, while blue represents the left ear. This systematic approach establishes a uniform standard across audiology, making it easier for specialists to compare results and share information accurately. The remaining colors, such as green and yellow, are not part of the established standard for indicating ear designation in audiometry, which further emphasizes the importance of using blue for the left ear.