red triangle pointed up

A red triangle is a common symbol for caution or warning. It's frequently used on road signs and safety notices.

On social media, it's used to highlight important announcements or noteworthy content. It's also often used in games and apps to notify users of new features.

This shape originated as a traffic safety sign, first introduced in Europe in the early 1900s. Its high visibility and ability to instantly grab attention led to its widespread adoption worldwide.

In today's digital environment, beyond alerts and warnings, it's also used to symbolize growth, upward trends, and progress. It's particularly effective in business presentations and data visualizations to represent positive change or development.