Humans don't see ultraviolet light, precisely because "ultraviolet" is defined as light beyond the visible range for humans.
You should look at it the other way round. The word 'ultra' means 'beyond', so you have the visible spectrum which ends at violet, then what is beyond is 'ultra violet'.
Most humans eyes are sensitive to wavelengths between about 400 nm (violet) and 700 nm (red)
nope
Only in the 'visible light' spectrum.