0x00FB

0x00FB is the hexadecimal Unicode code point designated for the character "LATIN SMALL LETTER U WITH TILDE" (ũ). The code point is part of the Latin-1 Supplement block, which occupies the range U+0080 to U+00FF. Characters in this block were originally defined by the ISO/IEC 8859-1 standard and later incorporated into Unicode. The 0x00FB character is typically used in languages such as Portuguese and Galician, where the tilde indicates a nasalized vowel sound. In these languages, ũ represents a palatal nasal or a nasalized vowel that contrasts with the plain u sound (u) in words such as "mũ" (in Portuguese) versus "mundo" (world).

From a technical standpoint, 0x00FB is encoded in UTF‑8 as the two‑byte sequence C3 9B and in UTF‑16 as the single 16‑bit unit 00FB. In HTML, the character can be referenced with the named entity û or by using the numeric character reference û (in decimal). When rendering on systems that support Unicode, ũ displays as a lowercase u with a tilde above it. The character also appears on many character maps, including the Windows character map and the macOS character viewer. Unicode assigns it the General Category Ll (Letter, Lowercase), and its canonical decomposition is just the base letter u with a combining tilde.

Overall, 0x00FB serves a specific phonetic function in certain Romance languages and is a standard part of the extended Latin character set available in modern computing.