This is a vibrant, saturated, gorgeous blue!
I LOVE it.

I love the intense color of Baystate Blue! I use it in a Lamy with 1.1 stub, simply wild lines!

Warning! The bottle is definitely overfilled! I have to always open new bottles of ink and look at the actual color and I exuberantly opened this bottle and am now wearing a splash of Bay State Blue on my right ring finger. It highlights my bright yellow fingernail polish so I'm content! Since I already had BSB on that finger, I tried out Diamine's Holly and Jack Frost on 2 other fingers. Needless to say, after 4-5 washings using Bath and Bodyworks liquid soap, handmade lavender soap, Dial and Pantene shampoo, most of the Holly and Jack Frost have washed away. I look forward to bragging about Goulet Pen Company with everyone who asks about my BSB stained ring finger for the next few days! I have ordered a Dip Pen to try out the actual properties of BSB on paper before I choose a medium or 1.5 Stub to be my permanent BSB pen! And, I love the color. It jumps out of the bottle and longs to be resting on paper, floors, bathroom walls, stainless steel sinks, and fingers - it can't help itself. Brenda impeccably packed my latest order from Goulet Pens. Thank you for the perfect customer service. I'm loving the Pencasts, Drew and Brian! Jeane a Kent Island fan

This blue is blue. Can be seen even in fine. I only wish to have better quality paper at work.

nice color

The legendary blue ink! I have to be honest, I tried to order from Amazon 3 times and they kept sending me a baystate blue box with 54th Massachusetts bottles in them. Finally I came to my senses and bought it from a reputable pen seller. I am a noodlers fan anyways, so it makes sense that I would have one of their infamous inks. I have not had any trouble with staining, but that is probably because I treat it like an open vial of high-grade nuclear waste when I am using it. I have a dedicated platinum preppy because of stories of staining. Let me tell you, the stains are real. My clear preppy is so stained blue that I can't tell the ink level in the converter. But it is all worth it for such a bright and fun blue ink. Don't be scared of Baystate, but be prepared and cautious. Hopefully you will enjoy it as much as I do!

Use it in a dedicated pen because this ink stains! But it goes off with alcohol. The blue colour is just great and there is no one like it.

Love the color. Only thing from making it 5 stars is the bottle is too full. Ink everywhere when I opened it.

Been using this ink for so long I cannot remember how many years!

Baystate Blue is a great color for note taking, journaling, and everyday use. And of course, Goulet Pens is the best place to purchase fountain pen ink.

Love the color.

It’s blue.

That blue is so deep it shows different shades depending on how the light hits it.
Amazing

Absolutely my number one blue from now on. Wow!
It lives up to the hype. Such a brilliant saturated amazing blue. It is my EDC ink now. It feathers some on cheap paper, but not so much that it's a problem. The results on most paper over many weeks in an office environment has been just fine. Despite the cautions about staining, I find cleaning with care yields no problems. Just use common sense.

Only reason I'm giving it a four is because it is only good in a pen dedicated to Baystate other then that l love the color

Beautiful rich color.

I went through every blue on this site and this one met my needs. I grew up with ballpoints, common faded blues and grey blacks. I wanted something dramatic and eye-catching that would shame those 10 for $5 mass produced pens. Folks, this was everything I wanted it to be. We have sheets at work for logging items and my dramatic blue stands head and shoulders above the others. Additionally it's beautiful to look at on the page. I put some in a clear TWSBI and now I pull it out of my pocket and hold it up to the light so I can admire that brilliant sapphire hue. I think it's a great flex at work, made all the more sweet by the inexpensive price.

I love this color. Yes, it stains, but just be careful. It's worth the hassle. The color is breathtaking. My very favorite ink color. Once you use this ink, it's difficult to use any other blue ink. They simply don't compare.

Guys, I'm new to fountain pens. I read online all about the funny people staining their hands, clothes, stairs, house, etc. I thought it was funny people being goofy. Folks, I'm here to say - it's no joke. The stuff just jumps out of the bottle and gets everywhere!

All of that said: The ink looks amazing. Best blue I've ever written with. Wow! Love it.

I love the vibrant blue color. It does stain pretty bad and tends to feather unless using the right paper.

Not light, not dark, just as blue as blue can be. And it's waterproof. I have a blue TWSBI Eco dedicated to this beautiful ink.

Love it so far

If you want a strong, impressive Blue, Noodler's Baystate Blue is the best looking blue on earth.

Morning Pages (Re: Julia Cameron’sTheArtists Way book)
Most used ink. Bright and dense yet flows well, dries well and stays. I don't mind that it stains. It is rich.

Beautiful deep color. Works great with my pilot Metropolitan fin nib. Dries fast and quite resistant to water.

Have used with one medium nib Jinhao X750. It seemed to feed really wet and paper had some feathering (Rhodia), also some ghosting with the medium nib. I really like the Blue!

Overall, Baystate Blue is a fantastic ink with SOME caveats. I heard the horror stories, too, but I'll try almost anything at least once. I selected my Charcoal Lamy Safari (NOT the Vista!), a well used converter, put my new 1.5mm stub nib on the pen, drew ink through the nib into the converter from a VERY full bottle of ink, wiped off excess ink from the grip section of the pen, and started to write. The nib and ink complemented each other very well on the cheap paper we use at the office. The color is one of the richest most vibrant blues I've ever used. It maintains its color after drying, and appears to be fairly light resistant, and nearly waterproof. I found the ink to be relatively wet, with a little longer drying time required to avoid smudging the ink when you write on the next line below.
After exhausting the ink in the converter, I gave the pen a good rinse, and everything rinsed, or wiped, clean including the sink. The only thing that retained the blue hue was the inside of the converter. I'm going to have to try a regular nib next, because that blue is too awesome to ignore! And don't wear your favorite white shirt while writing with this, or any other, fountain pen ink.

I have been having great experience using the product, love the color and its performance on paper, work well together with my pen.

I recently returned to fountain pens after a five-year hiatus and was looking for a vivid blue ink. Baystate Blue caught my eye, so I got myself a bottle (I had no prior knowledge about the infamy of BSB). A day later, I was discussing my purchase with a friend of mine and told her I had ordered a bottle of BSB, and all she said was, "Wow, daring."I immediately went and read up on forums about the ink and stumbled upon post after post discussing its pros and cons. Once I inked up my old fountain pen, my stained fingers and the stubborn droplets of blue residue on my porcelain sink made it clear why so many consider this a dangerous ink. That said, I am in love. The blue is vibrant and gorgeous, and no other blue I've tried comes close to it. I have resolved to be as careful as possible when refilling my pen (which I have now relegated to being a BSB pen forever).

Best blue ink I have found!