Each square represents 2 maritime flags stacked on top of each other with blended colors. One representing the number 1-9 and the other representing an alphabet letter
Reading left-right top-bottom, the squared can be decoded as follows.
6O
4F
8E
3Y
7W
2A
1M
9R
5L
Rearranging in 1-9 order gives the final answer of MAYFLOWER
