Cool, I have a friend who is also red-green color blind. He's from Ukraine, extremely talented, but because of his eyes he won't eat anything green. The logic being, why eat anything that looks brown?
For LED's on switches, truly handy to have HP's implementation on ProCurves (not the 3Com rebrands). They normally show activity, then cycle through with a little button to show link status, duplex, and speed, but it's all in green LED. Blue LED would be excellent, but after several years of blinking away, they might get a bit dim even with the eye-searing brightness of them. 3Com have this tri-color LED that is yellow, green, and some sort of orange, I believe. To figure out what's what, you look at the bank of LED's, match the port number, then look at the lower bank of orange LED to see link speed, if lit. At least on the V1910 we're upgrading to, it seems to only light orange on gigabit links. I dunno.
Anyway, back to eyes, going into a poorly lit cable closet it takes a long time for my eyes to adjust. I think I'll have to bite the bullet and get some reading glasses. Oh the vanity!
Calm seas never made a skilled mariner. But, sadly I'm an A's fan.