If you’re looking for a basic and easy graphgan pattern then this is it.
It is a simple design of a cross. You can make this blanket longer by adding more rows of the solid colors on each end.

If you haven’t tried doing a graphgan before this is a good pattern to try for your first time. The pattern is done in all dc stitches with clean lines and a simple look.

If you need to know more about how to change colors or other graphgan techniques there are several resources online.

Hope you enjoy it