You can edit the name and color of an existing label.

  1. On GitHub, navigate to the main page of the repository.

  2. Under your repository name, click Issues or Pull requests. Issues and pull requests tab selection

  3. Next to the search field, click Labels. Issues Labels button

  4. In the labels list, click Edit next to the label you want to edit.

  5. In the text box, type your new label name. Issues new label textbox

  6. A color is automatically selected for the label. You can customize this color by editing the hexadecimal number or clicking the refresh button for another random selection. Issues new label color refresh

  7. Click Save changes.

Further reading