COLON·U+003A

:

Character Information

Code Point
U+003A
HEX
003A
Unicode Plane
Basic Multilingual Plane
Category
Other Punctuation

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
3A
00111010
UTF16 (big Endian)
00 3A
00000000 00111010
UTF16 (little Endian)
3A 00
00111010 00000000
UTF32 (big Endian)
00 00 00 3A
00000000 00000000 00000000 00111010
UTF32 (little Endian)
3A 00 00 00
00111010 00000000 00000000 00000000
HTML Entity
:
URI Encoded
%3A

Description

The Unicode character U+003A, commonly known as the COLON (:), plays a pivotal role in digital text formatting. This typographical mark is primarily used as a separator between phrases, clauses, or lists, enhancing readability and comprehension. In programming languages, it serves an essential purpose for control structures such as loops and conditionals. The colon has cultural and linguistic significance, particularly in its use in bullet points, citations, and quotations. Its versatility facilitates clear and organized communication across various disciplines, making it an indispensable element of typography and digital text formatting. The character is part of the Basic Latin Unicode block (U+0000 to U+007F), which is a foundational component of the Unicode system, accommodating 128 essential characters that are fundamental for modern communication across multiple platforms and devices. Despite its historical roots in the ASCII character set, the Basic Latin Unicode block has evolved to meet contemporary needs.

How to type the : symbol on Windows

Hold Alt and type 0058 on the numpad. Or use Character Map.

  1. Step 1: Determine the UTF-8 encoding bit layout

    The character : has the Unicode code point U+003A. In UTF-8, it is encoded using 1 byte because its codepoint is in the range of 0x0000 to 0x007f.

    Therefore we know that the UTF-8 encoding will be done over 7 bits within the final 8 bits and that it will have the format: 0xxxxxxx
    Where the x are the payload bits.

    UTF-8 Encoding bit layout by codepoint range
    Codepoint RangeBytesBit patternPayload length
    U+0000 - U+007F10xxxxxxx7 bits
    U+0080 - U+07FF2110xxxxx 10xxxxxx11 bits
    U+0800 - U+FFFF31110xxxx 10xxxxxx 10xxxxxx16 bits
    U+10000 - U+10FFFF411110xxx 10xxxxxx 10xxxxxx 10xxxxxx21 bits
  2. Step 2: Obtain the payload bits:

    Convert the hexadecimal code point U+003A to binary: 00111010. Those are the payload bits.

  3. 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:
    00111010