[acidrain]

I used both greys, and have had good luck. Yeah, the Gray BL is a very dark gray, and almost looks brown, and the Gray NLN is much lighter, and blueish in color, but you have to work with what you've got.
The Gray BL will come out much lighter if anodized for less time. Go for .5 to .75 mils and see the difference.
The gray BL looks almost gun-metal gray in high gloss, and the gray NLN looks more Pewter.
I agree, the on-line color chart is misleading at best, but learning what each color does at different ano thicknesses and finishes is something we all have to work through.
Deep red looks pink compared to a fire truck... I just use Bordeaux red for everything (varying the depth of color with dye time and ano thickness).
Same with orange... it looks (compared side-by-side) exactly like gold.
I'ver added red to my orange to create what I consider orange, and to make a true gold, ano to only .5mil max.
Olive is so dark, I thought I made a mistake. I've custom mixed my own olive so that it looks like an olive now (toning it down with bronze).
The blues are not accurate either, but like I said, work with what you've got, learn what each looks like, and make the best of it.
Don't think you won't be doing this exact same thing with anybody elses dyes either.