Which color is commonly used for marking white markings such as hold bars and taxiways?

The color white is commonly used for marking hold bars and taxiways in aviation. This standard helps ensure that pilots and ground personnel can easily identify critical areas on the airfield. White markings are employed because they provide high visibility against the darker surface of the taxiways and ramps, especially in various lighting conditions.

Using white for these specific markings helps maintain consistency with international aviation standards outlined by organizations like the International Civil Aviation Organization (ICAO), which further enhances safety by making it easier for all users of the airfield to understand and follow the established traffic patterns.