I was able to obtain williams.blue and it's been pretty great so far. Ive experienced some slight misunderstanding, but its usually easily cleared up.

Then there was the woman who heard "firstname@williams.blue. Yes it ends in .blue" and added .com to the end anyway. Smh

It's quite nice having such a simple domain and email address as firstname@lastname.blue. And unlike many new TLDs, like .io, anybody who knows any English easily understands the word "blue". It requires no explanation.