Celebrating GRINDERSHUSTLERS & DREAMERS. Harlem owned. What’s with the Blue Light? During Prohibition, a brownstone speakeasy in Harlem had a renowned housebrew. Whenever a fresh batch was tapped, they’d announce the same with a blue light out front. That’s brilliantly brazen, and reveals authentic pride. We at Harlem Blue love and make delicious premium craft beers. Craft ambition that’s True to The City!!