Meaning
A solid brown square from the emoji version 12.0 colour set. It means brown and is the go-to tile for earth, wood and chocolate in emoji art.
Fans of block-building games use it for dirt and wooden planks, and others for coffee, chocolate or cosy autumn palettes: “Built a tiny house: 🟫🟫🟫 with a 🟥 roof” It also fits rustic, earthy colour codes. The round version is 🟤.