Do I think a blue gi has a place in Judo? I don't know. I don't really think it matters, to be perfectly honest. I can practice Judo in shorts and a tank top, so the color of the gi does not bother me much. That being said, I usually like to see people on my mats wearing a white gi, simply so that blood will show up faster should anyone get hurt.

I see no need for MORE colors. I'd be perfectly happy with just white.

The white gi has no real importance to me. We have guys who come to Judo class in white, blue and black gis, and I don't care too much. Buying a gi is expensive and if someone already has a gi for BJJ, I'm not going to ask them to buy another, as long as their current gi meets the standard for a Judo gi.

IN the end, as I stated, I prefer white because blood shows up quickly if someone gets hurt.