What are the primary and secondary colors for a radiological contamination marker?

In the context of radiological contamination markers, the primary and secondary colors used are white and black. This color combination is specifically designated to help convey important information regarding radiological hazards clearly and effectively.

White is often used for backgrounds or symbols to ensure high visibility, while black is utilized for lettering or outlines to enhance contrast and readability against the white surface. This stark contrast makes it easier for personnel to quickly identify and understand the presence of radiological contamination, which is critical for safety and effective response measures in potentially hazardous environments.

Choosing this combination ensures that markers are easily distinguished in various conditions, aiding in immediate recognition by crew members and ensuring proper protocols are followed.