How do I type the ⦋ left square bracket with underbar symbol?

On Windows, type 298B and press Alt+X. On Linux press Ctrl+Shift+U then 298b. On any system the quickest route is the copy button on this page.

What is the code for ⦋?

Left Square Bracket With Underbar is U+298B, written in HTML as &lbrke; and in LaTeX as \lbrackubar. In UTF-8 it takes 3 bytes. The table above lists every escape format.

What kind of character is ⦋?

Left Square Bracket With Underbar is filed under Opening punctuation in the Miscellaneous Mathematical Symbols-B block, and was introduced in Unicode 3.2. This is an opening bracket. Editors that highlight matching pairs, and bidirectional text algorithms, both key off this category rather than off the glyph.

U+298B · Opening punctuation

HTML entity

&lbrke;

LaTeX

\lbrackubar

Left Square Bracket With Underbar Symbol ⦋

⦋ is left square bracket with underbar. Write it in HTML as &lbrke; or paste the character directly. It was added in Unicode 3.2, and Unicode files it under Opening punctuation.

Codes & technical data

Unicode	`U+298B`
HTML hex	`⦋`
HTML decimal	`⦋`
CSS	`\298B`
JavaScript	`\u{298B}`
Python	`\U0000298B`
Java / C#	`\u298B`
Rust	`\u{298b}`
Swift	`\u{298B}`
PHP	`\u{298B}`
URL encoded	`%E2%A6%8B`
UTF-8 bytes	`E2 A6 8B`
UTF-16 bytes	`298B`
Base64	`4qaL`
Decimal	`10635`
HTML entity	`&lbrke;`
LaTeX	`\lbrackubar`
Category	Opening punctuation (Ps)
Introduced	Unicode 3.2

Will ⦋ survive being pasted?

Normalisation. Yes. ⦋ is unchanged by NFKC, so it survives normalising systems intact.
Legacy encodings. ⦋ is Unicode-only — it has no Latin-1 equivalent, so a system stuck on an 8-bit encoding cannot represent it.
Size. 3 bytes in UTF-8. Character-limited fields — SMS, bios, some form validators — usually count bytes, not characters.

Other underbar characters

Unicode names 12 characters ending in “underbar”. They differ by direction, weight or decoration rather than by meaning.

Nearby in Miscellaneous Mathematical Symbols-B

Brackets, fences and operators for advanced notation — the ceiling and floor variants, angle brackets and the many circled and squared operators.

All 128 characters in Miscellaneous Mathematical Symbols-B →

How to type ⦋

Windows	Type `298B` then press `Alt`+`X`
macOS	Press `Ctrl`+`Cmd`+`Space`, then search for “left square bracket with underbar”
Linux	Press `Ctrl`+`Shift`+`U`, type `298b`, press `Enter`
HTML	`&lbrke;`

About Unicode’s Opening punctuation category

This is an opening bracket. Editors that highlight matching pairs, and bidirectional text algorithms, both key off this category rather than off the glyph.

Frequently asked questions

How do I type the ⦋ left square bracket with underbar symbol?: On Windows, type 298B and press Alt+X. On Linux press Ctrl+Shift+U then 298b. On any system the quickest route is the copy button on this page.
What is the code for ⦋?: Left Square Bracket With Underbar is U+298B, written in HTML as &lbrke; and in LaTeX as \lbrackubar. In UTF-8 it takes 3 bytes. The table above lists every escape format.
What kind of character is ⦋?: Left Square Bracket With Underbar is filed under Opening punctuation in the Miscellaneous Mathematical Symbols-B block, and was introduced in Unicode 3.2. This is an opening bracket. Editors that highlight matching pairs, and bidirectional text algorithms, both key off this category rather than off the glyph.