The pink stands for the mythical animal of legend, the pink dragon, as well as the national animal the unicorn. It is also a good symbolism of the Elyrion religion, because in lore, a lot of the gods and goddesses wear pink
The blue stands for environmental purity. The Elyrion nation takes the environment very seriously, and thus is officially recognised on the flag.
The yellow stands for light, more specifically the saying "The light at the end of the tunnel", signifying the Elyrion people's tenacity and efforts for continued progress.
/skipme