News for hackers. Stuff that matters.

A comment on Why are plants green? To reduce the noise in photosynthesis. Parent comment

Re:Why are plants green? To reduce the noise in photosynthesis by throwaway0asd on Sunday October 02, 2022 @06:33AM (#33054704)
The math to compare colors is more simple than that: https://www.w3.org/TR/WCAG20/#relativeluminancedef

Blue is a slightly higher frequency than both red and green but green has a dramatically higher luminosity. Simple arithmetic applied against that less simple luminosity formula allows for contrast comparisons.

[ Parent | on HN ]
Re:Why are plants green? To reduce the noise in photosynthesis by sigmoid10 on Friday October 07, 2022 @04:08AM (#33118587)
We're still talking about the solar power density here though. Ofc blue is a higher frequency than green, noone disputes that. But you can't technically say green is high(er) in the solar power spectrum.
[ Parent | on HN ]