0xFFFFFF

0xFFFFFF is a hexadecimal literal commonly used in computing to represent the color white in 24-bit RGB color space. It encodes red = 255, green = 255, and blue = 255, the maximum value for each color channel. In decimal form, 0xFFFFFF equals 16,777,215, and in binary it is 11111111 11111111 11111111.

In programming, the 0x prefix denotes hexadecimal notation, and 0xFFFFFF is used to specify colors in many languages such as C, C++, Java, and JavaScript. When interpreted as a color, it corresponds to white in 24-bit RGB. In web design, the conventional representation of this color is the hex string #FFFFFF, while the rgb() function can also denote it as rgb(255, 255, 255).

Variants and related usage include 0xFFFFFFFF, which represents white with full opacity in 32-bit ARGB or RGBA formats. The 0xFFFFFF value is also used as a color mask in bitwise operations, where all color channels are enabled. Across systems, while the exact syntax for defining a color may differ, the underlying color is consistently interpreted as pure white.