Step 1: Determine the UTF-8 encoding bit layout
The character ⬛ has the Unicode code point U+2B1B. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800
to0xffff
.
Therefore we know that the UTF-8 encoding will be done over 16 bits within the final 24 bits and that it will have the format:1110xxxx 10xxxxxx 10xxxxxx
Where thex
are the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+2B1B to binary:
00101011 00011011
. Those are the payload bits.Step 3: Fill in the bits to match the bit pattern:
Obtain the final bytes by arranging the paylod bits to match the bit layout:
11100010 10101100 10011011
BLACK LARGE SQUARE·U+2B1B
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 AC 9B | 11100010 10101100 10011011 |
UTF16 (big Endian) | 2B 1B | 00101011 00011011 |
UTF16 (little Endian) | 1B 2B | 00011011 00101011 |
UTF32 (big Endian) | 00 00 2B 1B | 00000000 00000000 00101011 00011011 |
UTF32 (little Endian) | 1B 2B 00 00 | 00011011 00101011 00000000 00000000 |
Description
The Unicode character U+2B1B, known as the Black Large Square, is a typographical symbol used primarily in digital text to represent an empty box or a placeholder for graphical elements. It can be found in the Miscellaneous Technical block of the Unicode Standard and has various applications across different platforms. Typically, this character serves as a visual separator, marking divisions within content such as tables, lists, or grids, and assisting with layout alignment. The Black Large Square is also used in programming to signify an empty space or an unused area, helping developers maintain a clear, organized structure for their code. Although this symbol does not have any direct cultural or linguistic significance, it plays a crucial role in ensuring readability and organization in digital texts across different languages and platforms.
How to type the ⬛ symbol on Windows
Hold Alt and type 11035 on the numpad. Or use Character Map.