Maybe Benjamin Moore Cayman Blue 2060-50. Look in that range and see if you think there is a match.

Or BM True Blue - 2066-50

BM Rocky Mountain Sky - 2066-40.

I think they're close but monitor variations make it hard to know for sure.

That looks like a pool paint.

https://www.google.com/search?q=fluorescent+light+medium++blue+exterior+pool+wall+paint+pool&client=firefox-b-1-d&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjuz7nV95DyAhXhKVkFHeOvDKcQ_AUoAXoECAEQAw&biw=1366&bih=615

Would look for "fluorescent" blues.

not perfect match but these are from Sherwin Williams

keep in mind they bighten colors when they photoshop. I've done it w/my own colors.

I think this one was BM Naples Blue, or maybe Capri? I'd have to look to find the color.
It was pretty much like this photo.

try some of these from BM, or just look for intense turquoise colors.

I would say that that photo was digitally enhanced. But here are some colors that come close.

DayGlo Screamin' Paint Horizon Blue

Blues are always hard to get right good luck on the search I love that color.

The AD article says it's a cerulean blue, but not the maker of the paint. Maybe try contacting Bestor Architecture and ask them what they used? https://bestorarchitecture.com/portfolio-2/project-one-2f6hk-aaga8

Benjamin Moore Rocky Mountain Sky, already mentioned, is a very bright blue, best appreciated when painted over a large area. Definitely look at a large sample.

More options

That looks similar, maybe a bit more intense than Richard Petty's "Petty Blue" used on his racecars. Why the heck would I mention autopaint? Back in the day they used to paint racecars with regular 'ol housepaint, since they got all banged up. His namesake color came about when he didn't have enough white for full coverage, and added some leftover blue to the mix.

So maybe start with something like BM True Blue, or SW Dynamic Blue, and add it to white. Play around with colors. For reference and color checks, there are multitudes of spray paints available this hue - search "Maui Blue," "Torque n Teal," "Grabber Blue," and "Rapid Blue," the key is getting the intensity of the hue.

Ecos cerulean blue paint seems to be a darker version of it :

https://ecospaints.net/Gloss-Paint?matchtype=&network=g&device=c&adposition=&keyword=&campaign=%7Bcampaign%7D&adgroup=%7Badgroup%7D&gclid=EAIaIQobChMI1LmU49WT8gIVkojICh3phAP8EAQYAyABEgJrzvD_BwE

Thanks to Beesneeds. I managed to get a picture that looks less edited. This hue seems more realistic/achievable. I have written to the designer and will let you all know what they say.

Thanks for all the tips/help so far!

Btw. I also attached the selection I found at SW.