Step 1: Determine the UTF-8 encoding bit layout
The character ● has the Unicode code point U+25CF. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800to0xffff.
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 thexare 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+25CF to binary:
00100101 11001111. 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 10010111 10001111
BLACK CIRCLE·U+25CF
●
Character Information
Code Point
U+25CF
HEX
25CF
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 97 8F | 11100010 10010111 10001111 |
| UTF16 (big Endian) | 25 CF | 00100101 11001111 |
| UTF16 (little Endian) | CF 25 | 11001111 00100101 |
| UTF32 (big Endian) | 00 00 25 CF | 00000000 00000000 00100101 11001111 |
| UTF32 (little Endian) | CF 25 00 00 | 11001111 00100101 00000000 00000000 |
HTML Entity
●
URI Encoded
%E2%97%8F
Description
The Unicode character U+25CF represents the "Black Circle" (⚫) in digital text. This symbol is commonly used to denote a solid circle filled with black color. It holds a significant role in typography, particularly when it comes to creating visual aids, checkboxes, or buttons within digital platforms such as websites and applications. The Black Circle is also employed for illustrating various patterns, grids, and diagrams where a complete, uninterrupted circular shape is needed. Despite being a relatively simple symbol, the Black Circle serves as an essential element in many aspects of design and typography, providing clarity and visual appeal to digital content across different industries.
How to type the ● symbol on Windows
Hold Alt and type 9679 on the numpad. Or use Character Map.