What is the color of the primary brake warning light on the dashboard of vehicles?

The primary brake warning light on the dashboard is colored red. This is designed to grab attention immediately, signaling to the driver that there is a critical issue that needs to be addressed. Typically, the red brake warning light indicates problems such as low brake fluid levels or issues with the braking system itself, which can affect the vehicle's safety. The urgency of the red color serves to remind drivers that they should take immediate action, such as checking the brake system or pulling over to assess the situation.

The other colors, such as blue and green, are generally associated with less critical information, like high beam indicators or operational status, while yellow typically indicates a caution or warning level that is less serious than a red alert but still requires attention. Therefore, red is specifically reserved for the most pressing safety concerns regarding brakes.