Jonathan Higgs puts in succintly on having the blue colour dot option in red dot sights. TruGlo have put in the blue colour option as a reticle as it uses up lesser power thus making your batteries last longer. In this Airsoftology episode, he shows us the TruGlo TRITON™ 30MM Light Weight Tri-Color Tactical Red Dot... "Choices are good, and that's what you get with the Tri-color Triton Tactical 'Red Dot' from TruGlo. Watch and see if being blue is a good thing!"