ASCII 168
Diaeresis (¨)
Latin-1 Supplement
Latin-1 character.
Common uses & context
Decimal 168 (0xA8) is Diaeresis, part of the Latin-1 Supplement (128–255). Latin-1 character. It renders as '¨' and its binary byte is 10101000.
This is where single-byte ASCII ends and encoding matters. In Latin-1 (ISO-8859-1) '¨' is the single byte 0xA8. In UTF-8 — today's default for the web — the same character is the multi-byte sequence 0xC2 0xA8. Treating a Latin-1 byte as UTF-8 (or vice versa) is the usual reason accented letters and symbols turn into mojibake like é or €. The Unicode code point is U+00A8, and in HTML you can write it as ¨ or ¨.
All encodings at a glance
| Decimal | 168 |
| Hexadecimal | 0xA8 |
| Octal | 0250 |
| Binary | 10101000 |
| HTML numeric entity | ¨ |
| HTML named entity | ¨ |
| URL encoding | %A8 |
| UTF-8 bytes | 0xC2 0xA8 |
Code snippets
JavaScript
String.fromCharCode(168); // "¨"
168.toString(16); // "a8"Python
chr(168) # control char ¨
ord(chr(168)) # 168
hex(168) # '0xa8'HTML
¨ <!-- named entity -->
¨ <!-- numeric entity -->Programming notes
- ▸Single byte 0xA8 in Latin-1, but the multi-byte sequence 0xC2 0xA8 in UTF-8 — never assume one byte per character above code 127.
- ▸Unicode code point U+00A8; HTML entity ¨.
- ▸If '¨' shows as mojibake, the encoding declared and the encoding used disagree — align both on UTF-8.
Unicode & UTF-8 note
In Unicode this is U+00A8. In UTF-8 it encodes to the byte sequence 0xC2 0xA8. In legacy Latin-1 (ISO-8859-1) it is a single byte 0xA8, which is why Latin-1 files often appear as mojibake when interpreted as UTF-8.
Frequently asked questions
What character is ASCII code 168?
ASCII code 168 is the character '¨' (Diaeresis). In hexadecimal it is 0xA8, in octal 0250, and in binary 10101000.
What is 0xA8 in ASCII?
Hexadecimal 0xA8 equals decimal 168, which is the character '¨' (Diaeresis). To convert hex to ASCII yourself, read the two hex digits as a base-16 number (0xA8 = 168) and look up that code point.
How do I write the character with code 168 in code?
In JavaScript use String.fromCharCode(168); in Python use chr(168); in HTML use the numeric entity ¨ or the named entity ¨. In a URL it is percent-encoded as %A8, and in UTF-8 it is stored as the byte sequence 0xC2 0xA8.
Is '¨' part of standard ASCII?
No. Standard ASCII covers codes 0–127 only. '¨' is code 168, part of the Latin-1 Supplement (128–255, sometimes called "extended ASCII"). It is a single byte 0xA8 in Latin-1 but a multi-byte sequence (0xC2 0xA8) in UTF-8.