orange eye blue tiger

Pardon the novel... I've had a thought on how to incorporate multiple species of shrimp into one habitat so that one could get a "skittles" effect, without cross breeding. This would lead to longevity of pure strains in the tank and in theory reduce culls. Ideally, shrimps would be healthy and...

I am having a hard time deciding whether I want to get crystal red shrimp or orange eye blue tiger shrimp. I have black gravel in my tank (Eco Complete Planted stuff). Will the blue shrimp blend in too much or will they look cool? Appreciate any responses!