Color of entities can be changed individually, and it does not have to be "By Layer".
Try main menu: Modify -> Attributes
Select your entities;
Accept to Continue;
Modify Color in the dialog.
JeanJr wrote
Hello,
I am quite new to CAD. I'd like to move objects between layers and preserve their original colors but I can't. They are converted to base base color seting at the targeted layer . Any tricks? Regards.