Which CSS property is used to change the text color of an element?

The property used to change the text color of an element in CSS is the color property. This property specifically targets the color of the text content within an element, allowing designers to specify any color value, such as a named color, a hex code, or an RGB/RGBA value. By using the color property, you can enhance the readability and visual appeal of text on a webpage, making it an essential tool for styling.

Options like font-size pertain to adjusting the size of the text rather than its color. The background-color property affects the background area of an element, not the text itself. Text-align is a property that manages the alignment of text but does not influence its coloring. The color property is pivotal for controlling how text appears on a webpage, thus directly impacting the user experience.