This is an unusual color. Its called blue black, but has a green blue cast.
It's beautiful. Great for every day and has flowed well in any pen I've filled with it!

I have used noodler's ink for years. The ink is great. The bottle needs an inkwell.

I got this color to go with my new TWSBI onyx green and it’s a great match. Also great Noodlers value.

It dries up fast on paper and the color is vibrant. I messed up and spilled a little on my table and clothes, but it wiped off easily and the ink on my dress came out in the wash. I was so relieved.

A sample convinced me to buy a full bottle. I love how readily it flows from a dry nib and the shading complements the dark component of the ink, creating a sort of dual-purpose ink that is very dark with a finer nib and very fun with a broader nib.

Air-Corps Blue-Black is a wonderful ink. It has a nice flow, and it has yet to give me any issues performance wise. Where this ink really comes into its own however is in it's beautiful color. It looks amazing when it is wet, fresh out of the pen, but even better when it finally dries. When dried, the ink takes on a greenish hue that can be deceiving to the eyes at first glance. Upon closer inspection though, it's still the same wonderful blue-black that now seems to be draped in a thin velvety green veil. It also preforms well across many varieties of paper, and I've used on everything from cheap office printer paper up too Clairefontaine paper. Overall it's a beautifully complex ink, and I even have a whole pen dedicated to it.

Very pleased with the ink which pays tribute to my father whose China-Burma-India blood chit I still have.

Color more green than blue/black. Performs really well on cheap paper

I really enjoy the color of this ink. I know it says 'blue-black', but the bottle I got is more like greenish black with a faint trace of blue. It's good at water resistance. Tested it out on a few different kinds of paper. A little slow to dry, but I'm not super concerned since I don't use this as my all day ink. I use this in a Noodler's Ahab flex and a Pilot Metropolitan stub nib.

Apart from my hands now being bluish green�it's great stuff. I switched over from Montblanc Petrol Blue because I needed water resistance. This definitely delivers, it's slightly more green but looks very similar to the Petrol Blue. This is my new daily ink, I'm using it with my beloved Lamy Studio LX .~H.

Flows nicely, dries quick enough, just wish it were more water resistant.

Beautiful in love the color, great price

I really enjoy this ink. I prefer blue-black inks and this is so well behaved, especially for Noodlers. For reference, it is more green than 54th Massachusetts but is a lot less likely to spread.

My favorite ink, PERIOD!

Flows well, looks good and is perfect for use at work

I had been using cartidges up until now but decided it was time to buy ink. Being the first bottle of ink I've bought, I wasn't sure how this would go. Now, I'm sorry I waited so long. The dark blue/almost black color is very easy read, and works well on the low quality paper I tend to use. I wish I had changed sooner.

Like the almost black with a hint of green, also like bottle size

Just got my first bottle of this ink today, and I have to say it's up there as one of my favorite inks, it has greenish blue color to it, but looks black enough where you can use it at work. I am definitely going to be using this ink all the time and going buy more when I eventually run out. Also, even though I try to mostly write on good paper( sometimes , but ink works well enough on Mead notebooks with little feathering, and little bleed through or ghosting

Nice ink - writes wet and has a very saturated color. I just wish that it was a ouch more on the bluer side in that it writes almost black. At least, in my experience.

I love the ink. It is quite a bit darker than the sample I tried, which was definitely a teal. I was not expecting such a huge difference between batches, but it is actually more useful to me as a blue black.

Is it blue? Is it green? I would call it a dark teal. It has a bit more color and character than Diamine Teal (which is really a close match). It has a lot of contrast to the paper, so it's very easy to read. A whole page of this color would be just fine, for both the writer and the reader. That greenish cast makes it unique, but it would be good for business use. The water resistance is a plus for envelope addresses.

Awesome! Love to color of this ink... Almost greenish, hard to explain. But nice alternative to just black or blue

I'm relatively new to fountain pens and I haven't explored much regarding the different shades of ink. I fell in love with this color as soon as I saw it on-line and decided that this would have been my first serious ink for my fountain pen (beyond the commercial cartridges I used before). The color is actually more of a green than blue, thus the blue-black label is quite misleading, as other users have already anticipated. This being said, I totally love how it looks on both white or cream paper. It is not water resistant, at least in my hands, but I can tell that it dries very fast, way faster than the 30 seconds somewhere else indicated. I'm very satisfied so far, the more I use it the more I love it!

I love this ink, I love the dark greenish color - and I love that its water resistant! I practically destroyed a sheet of paper with my water test, but the writing was still there and very visible.

I've been using it in my TWSBI Eco with a fine job. It looks great on my good paper and has little feathering on the cheap paper I have to use in class. The color is a nice green that can look real or blue in the right light.

This is one of my favorite inks, it dries quickly, it seems to feed okay, and the greenish blue color is really lovely. I've had a couple dry fees when I switched to this but I also live in a very dry climate and a shake or two got it going again, and it very well could be the pen.

On a Clairfontaibe notebook writing with a Pilot Fine, this still smudges 20-30 minutes after writing.

beautiful ink, great color. Slight green tint, less blue than expected.

I was searching for a water resistant ink that would match my Lamy Petrol, and this is it! Although Noodler calls it Blue-Black, to my eyes it has a greenish tinge. It's a hard color to describe, sort of a blackish, greenish, teal which is suitable for either the workplace or casual use. It flows smoothly in my Lamy F; I haven't tried it in any other pen. It behaves well on ordinary paper.

My father was a fighter pilot with the Flying Tigers stationed in China. I have the letters he wrote to my mom. The Air-Corp Blue-Black ink is exactly what he used in WW II. The color is spot on. Every time I use my pen, I think of my Dad. Thank You for this.

I bought this ink a few weeks ago. The colors is nice dark green black . Unless you happen to write something in black you really would not know it wasn't a black ink.