What does a map's blue color typically signify?

A map's blue color typically signifies water features, which can include rivers, lakes, oceans, and other bodies of water. This color coding is a common convention used in cartography to help users quickly identify aquatic environments on a map. Recognizing blue areas allows for a better understanding of the geographic layout and natural resources within the depicted region. The use of color in maps is crucial as it provides immediate visual cues that assist users in interpreting the landscape and its features efficiently.