To do Alt + H O T on Mac in Excel, download and install Accelerator Keys, then press Option, followed by H, O, and T.
Command: Tab Color
This is how to do Alt + H O T on Mac in Excel with Accelerator Keys, the native ribbon and alt key shortcut solution for Mac users who get more done with Excel.
Alt + H O T opens the Tab Color picker, allowing you to assign a color to the current sheet tab. Color-coding sheets helps organize workbooks with many sheets and makes it easier to quickly identify different sections or categories of data.