You can do it with my Boston Block method.
Here is the link for making the Boston Block. You would make 4 of them putting the colors where you need to. Then use the same method with 4 fabrics for the center block. Place the template on point to get triangles in the block. the corners are half square triangles and you can make them the same way with two pieces of fabric.
http://www.bitsnpiecesworkshop.com/p...stonBlocks.php
Layout of the blocks
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