<Tr> <Th> Use </Th> <Td> State and war flag, naval ensign </Td> </Tr> <Tr> <Th> Proportion </Th> <Td> 189: 335 </Td> </Tr> <Tr> <Th> Adopted </Th> <Td> May 27, 1912 </Td> </Tr> <Tr> <Th> Design </Th> <Td> A horizontal triband of blue (top and bottom) and white with the National Coat of Arms centered on the white band . </Td> </Tr>

What do the colors of the el salvador flag represent