Blue French Bulldogs are the most popular color right now. Trending upwards for years now. The cost can be $3,000-$5,000 depending on quality and sex. Blue French Bulldogs carry two dilute genes in the D-locus “d/d”, which is a dilute of black. Imagine adding white paint to black paint and https://sites.google.com/frenchbulldog.com/puppies/french-bulldog-colors