4 ms·

Funny to me that how #FF0000 is named Red, #0000FF is named Blue, but #00FF00 is Lime. Maybe it was supposed to be RLB. Although Green is the canonical name for

by h4l0 4y ago

Funny to me that how #FF0000 is named Red, #0000FF is named Blue, but #00FF00 is Lime. Maybe it was supposed to be RLB. Although Green is the canonical name for that color range, what we actually refer as Green in daily life is close to #008000.

crazygringo 4y ago
Yup, it's due to the fact that we perceive green as much brighter. It's actually very interesting to look at "constant luminance color wheels" which correct for this perceptually: https://www.researchgate.net/profile/Ralph_Redden/publication/311425408/figure/fig2/AS:435956709892096@1480951587007/Constant-luminance-colour-wheel-Participants-used-a-cursor-to-indicate-the-perceived_W640.jpg https://www.researchgate.net/profile/Ralph_Redden/publicatio... https://i.stack.imgur.com/f4n0P.png https://i.stack.imgur.com/f4n0P.png What we traditionally call "yellow" isn't even present, it becomes more like "khaki" or "olive".
- PaulHoule 4y ago
  On hot summer days I set my LED lights to 100% green. The idea is that I get more perceptual brightness per unit of heat released into the house. On days like that I am still getting light through the window, even if it is filtered by a space blanket, and I am mainly looking at screens, so there is still plenty of red and blue light around.
  - lajosbacs 4y ago
    Why do you do that, does it have a health benefit?
    - nayuki 4y ago
      > I get more perceptual brightness per unit of heat released into the house
    - kfajdsl 4y ago
      To reduce the heat that the bulbs are putting out, I think? Though, LED bulbs are already very efficient, and the difference in power usage between green light and a perceptibly the same brightness normal warm or sky tone light is probably minimal.
  - meatmanek 4y ago
    You may want to measure the actual power usage and light output of your LED lights. Typically, green LEDs are less efficient than blue or red, which may cancel out the perceptual differences.
- deleted 4y ago
  [deleted]
- jerrre 4y ago
  I don't see any red in this either
sricks3 4y ago
Funny to me that how... #00FF00 is Lime... what we actually refer as Green in daily life is close to #008000 And that "limegreen" (#32CD32) is a third, distinct color name.
- oneeyedpigeon 4y ago
  That doesn't sound SO absurd to me when I think about it. Limes do go through a fair range of colour space, after all. Maybe there should be a limeyellow?

by h4l0 4y ago

crazygringo 4y ago

Yup, it's due to the fact that we perceive green as much brighter. It's actually very interesting to look at "constant luminance color wheels" which correct for this perceptually: https://www.researchgate.net/profile/Ralph_Redden/publication/311425408/figure/fig2/AS:435956709892096@1480951587007/Constant-luminance-colour-wheel-Participants-used-a-cursor-to-indicate-the-perceived_W640.jpg https://www.researchgate.net/profile/Ralph_Redden/publicatio... https://i.stack.imgur.com/f4n0P.png https://i.stack.imgur.com/f4n0P.png What we traditionally call "yellow" isn't even present, it becomes more like "khaki" or "olive".

PaulHoule 4y ago
On hot summer days I set my LED lights to 100% green. The idea is that I get more perceptual brightness per unit of heat released into the house. On days like that I am still getting light through the window, even if it is filtered by a space blanket, and I am mainly looking at screens, so there is still plenty of red and blue light around.
- lajosbacs 4y ago
  Why do you do that, does it have a health benefit?
  - nayuki 4y ago
    > I get more perceptual brightness per unit of heat released into the house
  - kfajdsl 4y ago
    To reduce the heat that the bulbs are putting out, I think? Though, LED bulbs are already very efficient, and the difference in power usage between green light and a perceptibly the same brightness normal warm or sky tone light is probably minimal.
- meatmanek 4y ago
  You may want to measure the actual power usage and light output of your LED lights. Typically, green LEDs are less efficient than blue or red, which may cancel out the perceptual differences.
deleted 4y ago
[deleted]
jerrre 4y ago
I don't see any red in this either

sricks3 4y ago

Funny to me that how... #00FF00 is Lime... what we actually refer as Green in daily life is close to #008000 And that "limegreen" (#32CD32) is a third, distinct color name.

oneeyedpigeon 4y ago
That doesn't sound SO absurd to me when I think about it. Limes do go through a fair range of colour space, after all. Maybe there should be a limeyellow?