What you think is 'blockland tags' is actually HTML color codes. In these codes you must have 6 characters, in them can be A-F, and 0-9. And the first two characters represent Red, the next two characters represent Green, and the last two characters represent Blue. So, FFFFFF is white, 000000 is black, FF0000 is red, 00FF00 is green, and 0000FF is blue. Those are the most basic.
