Rectangle symbol ( ▭ ▬ ) is used to create artistic frame or border in text based messages. Rectangle symbols🌺 come in black such as black rectangle symbol █ or white such as white rectangle symbol ▭. You can mix rectangle symbols to make cool text frames ▯▮▯▮▯▮. This page offers rectangle keyboard text symbol to copy and paste rectangle emoticons, emojis, and symbols to any appli꧑cation.