Mathematical Sans-Serif Bold Capital L 𝗟

Visual Description: The symbol appears as a bold, geometric L with straight lines and uniform stroke weight. It uses a sans-serif style with clean corners and no decorative flair. The letter sits tall and compact, matching other bold math symbols. It looks modern, precise, and easy to read in crowded equations.

Meaning & Usage: It signals a bold mathematical label rather than plain text. It can denote a variable, such as a length or parameter, in concise equations. The bold sans-serif style helps keep variables visually distinct from surrounding prose. In calculators and quick UI controls, such symbols appear on buttons to mark inputs and comparisons.

Historical Background: This symbol belongs to a family created to support consistent math typography in digital documents. Its purpose is to provide a bold, non-italic variant that remains distinct from ordinary bold text. The evolution reflects standardization efforts for mathematical notation, not tied to any single person or place, but driven by visual clarity.

Practical Use: In formulas, insert this L to denote a length or a labeled quantity. In calculators and math apps, bold symbols help separate variables from text and keep displays readable. Quick UI controls can offer a bold L button for parameter entry or for marking a comparison in charts.

See our category page for related symbols.

Look‑alikes: L (U+4C).

Need styled alternatives? Try the Fancy Text tool.