On the Visual tab of the editor, if you click the last regular toolbar button “Toggle Toobar (Shift+Alt+Z)” you get an additional row of toolbar buttons.
Don’t use the toolbar button “A ▼ (Text Color)” to change the text color.
It will look fine until you post the message where upon it turns into unrecognized HTML tag code like span style=”color: #ff0000;” … span within less and greater symbols.
Intel®Core™2 “Wolfdale” E8400 3.0 GHz / 8.00 GB
HP ProDesk 400 G5 SFF PC / Windows 11 Pro / 23H2
Intel®Core™ “Coffee Lake” i3-8100 3.6 GHz / 16.00 GB