EDIT Full block means 100% black.

WINDOWS ALTcode 219
 
 jacobh  : : :  80.135.69.90 
ADD NEW PARAGRAPHWIKI
ADD NEWSIMILAR CHARACTERS
BLACK SQUARE
U+25A0
BLACK SQUARE
BLACK SQUARE
U+25A0
BLACK SQUARE
WHITE SQUARE
U+25A1
WHITE SQUARE
BLACK CIRCLE
U+25CF
BLACK CIRCLE
BLACK MEDIUM SQUARE
U+25FC
BLACK MEDIUM SQUARE
BLACK MEDIUM SMALL SQUARE
U+25FE
BLACK MEDIUM SMALL SQUARE
 < CHARACTER >  BLOCK PROPERTIES
U+2588 FULL BLOCK
DEUTSCH : ENGLISH