Left Black Lenticular Bracket 【

【 (U+3010) is a standard Unicode character that you can copy and paste anywhere text is accepted. This page provides a concise reference with safe tips, internal links, and practical guidance so you can use it reliably across apps and platforms.

What it is and where it’s used: Left Black Lenticular Bracket is part of the Symbols family (block: CJK Symbols and Punctuation). If you need styled or decorative alternatives, try our Fancy Text tool to generate compatible text that works in most modern interfaces.

History & usage: The LEFT BLACK LENTICULAR BRACKET is a punctuation mark in the CJK Symbols and Punctuation block. Its codepoint is U+3010. Its name in English is LEFT BLACK LENTICULAR BRACKET. In typography, it is used as a opening bracket, mainly in East Asian writing systems. It helps show quoted text, titles, or emphasized material within a sentence. Writers use it to delimit groups or parameters in lists and examples. In code, it can mark a parameter or an argument that follows in a block or snippet. The partner closing bracket is the corresponding U+3011 mark, which creates a clear pair for the enclosed content. The style is compact and strong, making the enclosed text stand out. Historically, such lenticular brackets appear in vertical and horizontal layouts and in typesetting that supports East Asian punctuation. They serve to separate content without relying on Latin punctuation. Today, the bracket remains a distinct option for authors who need clear, language-specific delimitation that fits non-Latin text. The usage atom emphasizes its role in grouping and quoting within writing and code.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+3010 in many development tools or editors. Some operating systems provide a character viewer or input palette that lets you search by name or code and insert the glyph into documents.

Display and fallback: if you see an empty box (tofu) or a placeholder rectangle, the active font might not include this codepoint. Switching to a font with broader Unicode coverage or using a fallback font usually fixes the issue. On the web, ensure the page’s font stack includes a general‑purpose fallback.

Related references: browse the Categories for similar characters. When choosing a symbol, prefer the official codepoint for semantic clarity and better compatibility with search, copy, and accessibility tooling.

See our category page for related symbols.