Red Square Emoji

A solid red square. The most emotionally charged shape-and-color combination in the emoji set. Emojipedia lists it as approved in Unicode 12.0 (2019) under the name "Large Red Square."

Red is the single most emotionally powerful color in the spectrum. It can mean stop, danger, love, anger, urgency, and passion, sometimes all at once. When people see 🟥 in a message, they read it as important, critical, or alerting. It's the emoji equivalent of the red notification badge on your phone, the one that creates low-grade anxiety until you tap it.

People use 🟥 for stop/error status, soccer red cards (ejection from the game), urgent alerts, and as a generic red color block in aesthetic content and Wordle results. Fun fact about the name: Moscow's Red Square wasn't named for its color or for communism. The Russian word krasnyi originally meant "beautiful" in Old Russian and only later came to mean "red." The UNESCO World Heritage Site was literally called "Beautiful Square."

🟥 lives at the intersection of urgency and aesthetics.

In tech and project management, it means "broken," "critical," or "blocked." A Slack message with 🟥 gets read first. In design systems, red squares mark error states, failed tests, and critical issues. The red notification badge on your phone (that little red circle with a number) increases app opens by 16-25% through the psychological tension of unresolved alerts.

In sports, 🟥 represents the red card in soccer/football. Since there's no dedicated red card emoji, 🟥 is the go-to. The red card system was introduced at the 1970 FIFA World Cup using traffic light logic: yellow for caution, red for stop.

In Wordle sharing, 🟥 doesn't actually appear (the game uses ⬛ or ⬜ for wrong guesses), but red squares show up in other puzzle games and tier-list content as the "bad" or "lowest" tier.

In art and culture contexts, 🟥 can reference Kazimir Malevich's 1915 painting *Red Square*), a foundational work of abstract art and the Suprematist movement.

🟥 was approved in Unicode 12.0 (2019) as part of the colored shapes batch (L2/18-141). While 🔴 (red circle) had existed since 2010, the red square was new.

Red's power as a signal color goes deep. Red was the first color (after black and white) that humans gave a name to in nearly every language, according to linguists Brent Berlin and Paul Kay's landmark 1969 study on basic color terms. This suggests red has been important to human cognition longer than any other chromatic color.

The red square has specific cultural weight. Kazimir Malevich painted *Red Square: Painterly Realism of a Peasant Woman in Two Dimensions*) in 1915 as part of the Suprematist art movement. The painting, a slightly tilted red quadrilateral on a white field, was exhibited at the groundbreaking "0,10" exhibition in Petrograd. It's one of the most important works in abstract art history.

And then there's Moscow's Red Square, which dates to the late 15th century. The name comes from Krasnaya Ploshchad, where krasnaya originally meant "beautiful" in Old Russian and only later shifted to mean "red." So Red Square was "Beautiful Square" first. The UNESCO World Heritage Site has hosted military parades, concerts, and political demonstrations for over 500 years.

Western cultures: Red means stop, danger, love, and urgency. It's the most emotionally loaded color. Red notification badges on phones exploit this, creating anxiety until cleared. In finance, "in the red" means losses.

China: Red is the luckiest color. It's worn at weddings, used for New Year decorations, and appears on the national flag. A red square in Chinese contexts reads as positive and celebratory, not alarming.

Russia: Red Square in Moscow is the country's most famous landmark. The name originally meant "Beautiful Square," not "Red Square." Red also carries Soviet-era associations with communism (Red Army, red star, red flag).

Soccer/Football: A red square represents the red card, introduced at the 1970 FIFA World Cup. Getting a red card means ejection and playing with one fewer player. The color-coding borrows from traffic lights: yellow = warning, red = stop.

• •Moscow's Red Square wasn't named for the color. The Old Russian word krasnaya meant "beautiful" before it meant "red." The landmark dating to the 1490s was originally "Beautiful Square."
• •Kazimir Malevich's 1915 painting *Red Square*) is a slightly tilted red quadrilateral on a white field. Its full title: "Painterly Realism of a Peasant Woman in Two Dimensions." It's a cornerstone of abstract art.
• •Red notification badges on apps increase opens by 16-25%. The psychological mechanism is the Zeigarnik Effect: unfinished tasks create mental tension that demands resolution.
• •The soccer red card system was introduced at the 1970 World Cup using traffic light logic (yellow = caution, red = stop) to cross language barriers between international referees and players.
• •Red is the first chromatic color named in nearly every language, according to Berlin and Kay's 1969 linguistic study. After black and white, red comes next. It's been cognitively important to humans longer than any other color.

• •Moscow's Red Square — One of the most famous landmarks on Earth, Red Square dates to the late 1400s. The name comes from Old Russian krasnaya meaning "beautiful," not "red." It became a UNESCO World Heritage Site in 1990. Saint Basil's Cathedral, built in 1554, is its most recognizable building.
• •Malevich's Red Square (1915) — Kazimir Malevich's *Red Square: Painterly Realism of a Peasant Woman in Two Dimensions*) is a tilted red quadrilateral on a white field. Exhibited at the "0,10" show in Petrograd, it helped launch the Suprematist movement and remains one of abstract art's foundational works.
• •The red notification badge — The little red circle on your app icons increases opens by 16-25% by exploiting the Zeigarnik Effect (people remember unfinished tasks). It's been called a dark pattern by UX critics who argue it creates unnecessary anxiety.
• •Soccer red cards (1970) — The red card penalty system was introduced at the 1970 FIFA World Cup in Mexico, using traffic light logic to cross language barriers. A red card means immediate ejection. 🟥 is the default emoji for it.

• •🟥 sits at U+1F7E5U+1F7E5 in the Geometric Shapes Extended block. Official name: LARGE RED SQUARELARGE RED SQUARE.
• •Common shortcodes: :red_square::red_square: on GitHub and Slack.
• •For error states in UIs, 🟥 is more visually striking than 🔴 due to the larger fill area of the square. But always pair with text for accessibility.
• •The colored square set spans U+1F7E5U+1F7E5-U+1F7EBU+1F7EB (red through brown) plus U+2B1BU+2B1B (black) and U+2B1CU+2B1C (white).

See the full Emoji Developer Tools guide for regex patterns, encoding helpers, and more.