#FFFFFF is the hexadecimal color code for pure white in digital design and web development. In this code, the "FF" represents the maximum value of red, green, and blue (RGB) color channels, which combine to create white light. Hexadecimal codes are widely used in HTML and CSS to specify colors for web pages. In the RGB color model, white is achieved when all three primary colors—red, green, and blue—are combined at their highest intensity. This makes #FFFFFF a versatile choice for backgrounds, text, and other design elements, as it provides a clean and neutral appearance that enhances readability and contrast.