Blue dwarfs are really massive. That is why they are rare. every 100 suns, the average amount of blue dwarfs will be 5 which means that 5% of all suns(not brown dwarfs) are Blue dwarfs.
Blue dwarfs:
Most massive on the main sequence.... or is it? BTW D01-A is an example of a blue dwarf sun
temp.: 30,000K-50,000K
mass: 8e+30kg-1.989e+32kg(3,000Qg-199,000Qg)
life span: 5,000,000mill-10,000mill
past type: proto sun
future type: blue giant