Black Medium Square Emoji

◼️ Black Medium Square is a solid black square in a mid-tier size, sitting between ⬛ and ◾. It's the most useful bullet point emoji in the square family: big enough to read clearly, small enough to not dominate a line. On every major platform it renders as a flat filled black square with no border, no 3D, no fuss.

It entered the Unicode standard in Unicode 3.2 on March 27, 2002 as part of the Geometric Shapes block), where the squares were imported originally from IBM Code Page 437, the 1981 DOS character set. Emoji status came later, when Unicode Emoji 1.0 was published in 2015 and it got absorbed into the emoji keyboard.

Of all the squares, ◼️ is the one a professional designer reaches for first when building a bulleted list in plain text. It's a typographer's tool that wandered into the emoji era.

◼️ is the power bullet. It shows up in LinkedIn career summaries, Instagram caption lists, X threads that need structure, and email newsletters forwarded through social. Marketing accounts prefer it over • because it holds size better and renders as a proper emoji on all platforms.

Paired with ◻️ it creates a natural two-tier bullet system: ◼️ for main items, ◻️ for sub-items. Text-art chess diagrams, checker patterns, and pixel-style banners also lean on ◼️ because it's the darkest, densest tile that doesn't become a full square block. Despite being the most "useful" of the squares, Unicode's frequency data still places it in the low-volume tier, well below standard emoji like ✅ or 🔥.

◼️ shares DNA with ◻️. Both were encoded in Unicode 3.2 on March 27, 2002 as part of an expansion of the Geometric Shapes block. Before 3.2, typographers had only large squares (◻ / ◼ at U+25A0–U+25A1) and the small ▪ / ▫ pair (U+25AA / U+25AB from Unicode 1.1). There was no middle weight.

The proposal to add the medium-size squares came from the same work that expanded typography support throughout the block. Designers wanted a bullet that sat between "big enough to be a block" and "small enough to disappear". U+25FB through U+25FE solved that by giving four mid-size variants: ◻️ medium white, ◼️ medium black, ◽ medium-small white, ◾ medium-small black.

Because ◼️ was never a carrier emoji, it doesn't appear in the L2/09-026 Japanese emoji proposal like 🔲 does. It became an emoji retroactively when Unicode Emoji 1.0 was published in mid-2015 and the square family was swept into the emoji keyboard.

1. 1981The solid black square glyph ships in IBM Code Page 437, the character set of the original IBM PC.
2. 1991Unicode 1.0 reserves the Geometric Shapes block but does not populate it yet.
3. 1993Unicode 1.1 adds the original large and small square characters to the block.
4. 2002Unicode 3.2 introduces medium and medium-small squares, including U+25FC ◼️.
5. 2015Unicode Emoji 1.0 classifies ◼️ as an emoji for the first time. It joins mobile emoji keyboards.
6. 2020LinkedIn's typography-driven post style boom makes ◼️ and ◻️ the de-facto bullet emojis for professional summaries.

• •◼️ is one of only four emojis in Unicode's "Emoji 0.6" category that are pure filled squares: ⬛, ◼️, ◾ and ▪️.
• •The proposal to standardize the medium-size square sibings is documented in the 2002 Unicode 3.2 release, page 2 of the geometry update.
• •◼️ holds the Unicode codepoint U+25FC. The variation selector U+FE0F is required after it to force emoji-style rendering on newer platforms.
• •The "medium" size was added specifically because typographers kept complaining that ◻/◼ (the larger U+25A0 pair) were too heavy for bullets and ▪/▫ were too small for modern screens.
• •On iOS, ◼️ renders at approximately 16×16 pixels within the emoji bounding box. On Android it's usually 20×20.
• •◼️ appears in LaTeX as \blacksquare\blacksquare, a shortcut mathematicians use to mark the end of a proof. The emoji version has no mathematical semantics but inherits the end-of-proof visual association.

• •End-of-proof mark: Mathematicians and scientists have used the solid black square as the "Q.E.D." symbol in papers for decades, a convention codified by Paul Halmos in the 1950s.
• •LinkedIn summary style: ◼️ became the default "power bullet" in LinkedIn post templates during the 2020 work-from-home content boom.
• •Text-based Wordle screenshots: Although ⬛ is Wordle's official wrong-letter tile, ◼️ appears in alternative text-based renderings and unofficial clones that render tiles smaller.