What type of features does the color blue represent on a map?

The color blue on a map is universally recognized as representing hydrography or water features. This includes natural bodies of water such as rivers, lakes, streams, and oceans. The use of blue provides clear visual cues for navigators and map readers to identify where water bodies are located, which is critical for planning routes, understanding terrain, and assessing potential barriers or resources in the environment.

In contrast, vegetation is typically represented in green, cultural features like roads, buildings, or monuments are often shown in various other colors, and relief or elevation is indicated using shades of browns and whites in contour lines or elevation shading. Understanding the color conventions on maps is essential for effective land navigation and map reading.