Queen/full size blanket
I used 4 colors for the granny squares, I used three 380 yd skeins in dark green, 2 380yrd in light green, 2 380 yrd in a light purple (shiny by big twist), 3 380 in a beige tan, and 380yards in dark brown all weight 4 yarn
Prym ergonomic hook 4.5 mm (7 for brand sizing)
Use whatever colors you'd like, just try to use the same amount of colors to use the same yardage