What property is used in CSS to change the text color?

The property used in CSS to change the text color is the color property. It specifically allows developers to set the color of the text in an HTML element. For instance, applying the CSS rule color: red; to a specific element will change the text color of that element to red. This property is essential for styling text in web design, enabling designers to enhance the readability and aesthetic appeal of the content.

In contrast, the background property is used to set the background color or image of an element, while font-size adjusts the size of the text. The text-align property controls the alignment of the text within its container but does not influence its color. Each of these other properties plays a crucial role in CSS, but none serve the purpose of altering text color as effectively as the color property.