Enter a wavelength of visible light (380nm - 808nm) to see what color it is 405nm.com Submitted by CoherentPhoton t3_yez813 on October 27, 2022 at 6:18 PM in InternetIsBeautiful 92 comments 1,363
HawkinsT t1_iu8dsq4 wrote on October 29, 2022 at 10:38 AM Starts getting very cool around 379 nm. Permalink 1
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