What color is a typical heliport beacon?

A typical heliport beacon is indeed colored yellow, white, and green. This color scheme is specifically designed to enhance visibility and safety for helicopter pilots during approach and departure.

The yellow color is essential in indicating a heliport during daytime, as it stands out against most natural backgrounds. The white light helps illuminate the area, making it easier to identify the location of the heliport at night. The green component often signifies that the helipad is in use and is typically associated with an active landing zone. This combination of colors assists pilots in recognizing heliports from a distance and ensures they can make informed decisions about landing safely.

The other color combinations in the question serve different purposes and are typically associated with other navigation aids or markings, which are not specifically tailored for heliport identification.