I was told my brown switches were horrendous :(
I'd recommend to get used blue and try it out.
I use green switches with o-rings in a semi-open office layout and the only people who have ever noticed it are other mech enthusiasts. Browns with o-rings would be even quieter than greens.
Still I like the newer quietened version, so I'm considering buying some more for my home keyboard (it is an identical model).