You need 2 colours + white, totally 280 grams. My blanket is 66 * 66 cm and is crocheted in Drops For You with needle 3,5.

Here you can watch how I made the blanket - https://www.youtube.com/watch?v=w5y91S9Kg1w&t

The pattern comes in both English and Swedish. Mönstret finns på både engelska och svenska.