0x1E

0x1E is a hexadecimal numeric literal used in many programming languages to denote the value 30 in decimal. It consists of the digits 1 and E in base-16, where E stands for 14.

In ASCII and Unicode, the byte 0x1E corresponds to the control character known as Record Separator (RS). Its code point is U+001E and it is categorized as a C0 control character. It is non-printable and historically used to separate records in data streams; in modern text, it is rarely encountered.

In practical computing, 0x1E can appear in binary data, networking, and file formats as a numeric value. It also maps to 30 when used as a color channel value in 8-bit-per-channel color representations, where a channel with value 0x1E would be a very dark shade of the corresponding color.

The string "0x1E" is also how programmers write a hex literal across many languages (C, C++, Java, Python, JavaScript), and understanding that it equals 30 decimal helps in bitwise operations and data parsing.

See also: hexadecimal notation, ASCII control characters, Unicode code points U+001E, decimal 30.