405nm is violet. 360nm is UV. Yes, we are sensitive to it. But white LEDs emit none* of either. *Future generation of LEDs might shift from indigo (445nm)

405nm is violet. 360nm is UV. Yes, we are sensitive to it. But white LEDs emit none* of either. *Future generation of LEDs might shift from indigo (445nm) to violet to improve color rendition, but cost will go way up and efficiency will go way down so I doubt it will be common. And some stores are already adding UV LEDs to their lighting in order to make florescents really pop. Edit: and a reference, the datasheet for the latest and greatest XHP50 LED: http://www.cree.com/~/media/Files/Cree/LED-Components-and-Modules/XLamp/Data-and-Binning/ds-XHP50.pdf http://www.cree.com/~/media/Files/Cree/LED-Components-and-Mo... Spectral charts are on page 11. Peak emission is at 445nm. Beyond 415nm there is nothing. Cheaper LEDs will use a longer wavelength of blue, typically around 475nm.