ASCII Hex Digit

Unicode Version 18.0

ASCII Hex Digit is a binary character property that identifies the twenty-two characters used to represent hexadecimal numbers in ASCII: the digits 0 through 9 and the letters A through F, plus their lowercase variants a through f. This property is primarily used in parsers and text processing to quickly verify if a character can be interpreted as a hex digit, which is essential in contexts like color codes, memory addresses, and binary-to-text encodings. It does not include the fullwidth or other Unicode hex digit characters, only the specific ASCII set, ensuring compatibility with legacy systems and simple data formats. The property value is true for these characters and false for all others, making it a straightforward boolean flag for validation and syntax highlighting.

Yes
Abbr
Y
Count
22

Yes is assigned to characters that are ASCII digits 0–9 or letters A–F, a–f, used in hexadecimal notation.
No
Abbr
N
Count
310319

No is the boolean false value, indicating the character is not a hexadecimal digit with ASCII encoding.