Green and yellow for me, I have difficulty with red in low light, I have never seen blue personally but would like to, seems it may be close to green
I think.

 

Interesting, I hadn't thought of yellow...anyone else?

 

I tried blue and it wasn't nearly as bright as green yellow or red.

 

Green first, red second, yellow third. Can't see the blue at all except if it has a light on it, then it is the brightest!!

 

For me green is the brightest, yellow is next, and red is the least bright.

 

i think green is the brightest, interesting enough I have a friend that we had to swap all the greens out cause he was unable to see them

 

I think we each pick up certain colors better than others. my choice is green than red.I cant see blue at all while others prefer it.

 

A study done by our Federal government back in the late 70's (before night sights came out) indicated that green and blue were the easiest colors of front sight inserts to see in low light. Red and orange were the worst. But I can't see the blue either. Green is the best.

 

Green, followed by Yellow for brightness. I prefer Red the least.

.

 

I like green and yellow, all of my sights are set up with those two colors.

 

Green and yellow for me!! Red is in my sight but it's only for my 30

 

Green, can't stand red pins

 

anything but red for me... Cant see it for nothing.

 

green all the way. yellow is next and red is so so. i see a pattern here

 

Green. Yellow. Red.

 

All green pins on my sight. Ill never bother with anything else again. I have sold a few customers special order blackgold sights because they have looked and tried my sight.

 

Yellow...red is the first to go in low light!

 

Green, then red...Yellow washes out in the dry grasses out West...

 

+1 :thumbs_up

 

Green, in all pin sizes, is brightest without a doubt. Gets sketchier from there depending on your background. In good light, against a dark background, I like Green, Yellow, Light Orange. Blue just disappoints, as does lavender. Red is very visible in bright light...almost too visible, as it often has a glow or halo effect. As mentioned above, you tend to lose yellow/orange against many targets/backgrounds in the west. For example, harder to see a yellow/orange pin against a pronghorn or elk than it is to see green.

In really dim light, red is pretty much worthless. Green shows up best followed by yellow/light orange.

Also matters what fiber material you use. Most stock fibers are not so good, chosen for durability as much as brightness. Move to a pure acrylic fiber, and all will be brighter, but not as strong. Move to ToughFiber, and you get max durability and max brightness. I retrofit all my sights with that stuff. Big 'thumbs up!'