I've heard (?) that color blind animals can tell the color red. Dont know if it's true, I have a red laser light pet toy, my cats love it. My first Aro loved to chase the red light, subsequent fish have all been terrified of it.
I have long blonde hair, my Aro was terrified of me when he first came home. I used to have to put my hair up until her got used to it. After he got used to it, anyone near the tank with blonde hair was in trouble, cause he was begging for attention and splashing. So there you have true blonde input.
I think he'll get used to it, as long as it dosn't freak him where he gets hurt, wear it regularly and he'll learn that's you and relax.