Questions tagged [colors]
For questions relating to color or the perception of color.
If possible, what would be the conditions for a planet like Earth to have an emerald green sky in its twilight zone? [closed]
Regardless, how can I get an idea of how the color of starlight, or any other natural phenomenon, impacts the color of the sky at different times of day?
Is the sky on venus likely to be blue above the cloud layer? [duplicate]
In my sci-if universe, humans are settling in the upper atmosphere of venus, and I was just wondering what kind of view they’d have. According to the Soviet venera probes, the sky on venus is likely ...
Why would authority figures' uniforms be more colourful than average people's? [closed]
In my world, there are magical humans often named wizards. Their scientific name is Homo magicus. However, there are standard humans (Homo sapiens as you shall know). Traditionally, wizards live in a ...
What compounds could be used to dye a gas giant the colour of a rainbow?
So, we have an incredibly advanced clarkean civilisation who, having achieved godlike technology, have taken to transforming whole planets and solar systems into works of art. One of these is Rainbow, ...
Is complete melanism possible in humans?
One of my characters has a genetic disease called "Complete Melanism". Her eyes, her skin, her hair, and her internal organs are all black. Like a famous Indonesian breed of chicken. The ...
Does it make biological sense for primates to come in every possible hair, skin, and eye color? [closed]
There are a lot of Japanese shows and games where people have many different hair colors and eye colors. There are even cartoons and games where people come in every skin color in the rainbow and ...
How does having blue blood affect the color perception of a species (on a subconscious level)? [closed]
In color psychology, red provokes the strongest emotion of any color. The increased heart rate can be associated with either blushing and passion or power and danger. So in general, you could say that ...
If Earth's atmosphere is technically violet but our eyes can't see it, is there a possible variable that can let us perceive that?
There are a LOT of unworked holes in this, but the basic premise is my planet is a P-type orbit in a binary star system where these two stars have close orbits around each-other in order for the ...
What evolutionary pressures would lead humans to evolve to be able to see ultraviolet light?
In my world, there is a species from the Homo genus named Homo maritimus (which means marine human) (there are still humans, just not Homo sapiens). They are commonly named merfolk. However, they do ...
What color would a neptune like planet have around an orange dwarf?
Let's say we have a Neptune like planet orbiting around a k5v orange dwarf star. The planet is about as massive as Uranus but its atmosphere contains a large amount of methane. Based on what I have ...
An alien spaceship is predominantly "white" inside. What color does a human see this as? [closed]
Human-made space-travelling objects seem to follow certain colour palettes. For example the interiors of human space stations seem to have been predominantly white, or a similar neutral shade like ...
Could anyone give me a scientific explanation of how a planet/creatures would have purple-ish hue?
so this is related to a different planet/civilization me and my friend have in mind. The civilization is an intelligent life living far from earth, but what I have been thinking of is making the ...
Is Xanthophyll good at absorbing Light? or do i need another light wavelenght?
I want my alien planet to have yellow or orange-yellow plants. Is xanthophyll a good option for plants to absorb light, or do I need to make my sun give off More of a certain wavelength so they can be ...
The variety of colour in a world under a red dwarf [closed]
I'm designing a world orbiting a red dwarf. Now, I want the life on my planet to have a rich variety of color just like life on earth does. The problem is that I don't know if that's feasible. From ...
What kind of star would allow for red plant life? [duplicate]
I'm designing an alien world in which plantlife is mostly red. I've read that the type of star the planet orbits plays an important role to the plants' color (For example, worlds around M type stars ...
What chemicals would an atmosphere unbreathable by humans (yet allowing alien life to thrive) contain?
(first question, hi!) At the moment, I am trying to bring a planet which contains an atmosphere that can barely be breathed by humans (14% oxygen to be precise), to life. This planet is abundant with ...
What atmosphere composition would make my weapon shoot orange plasma?
I am planning on painting a Warhammer 40k army that uses orange plasma for their energy based weapons, and use that exact same orange plasma for my worldbuilding, and other unrelated works of writing. ...
Midway through Terraforming Venus
I was watching a quite interesting Kurzgesagt video, Here. How would the surface of Venus look after freezing the CO2 out of the atmosphere? At around 5:28, we see that the atmospheric pressure is 3 ...
Hair that Ages from White to Black
Generally, human hair turns white as we age. However, one of the races in my world does this backwards; they are born white-haired, and when they reach 60 years of age it starts to gradually grow ...
Why would my sect permanently change the color of my hair and irises?
I live in a pre-industrial world, very similar to earth, but with very limited access to magic (no flight, only healing very minor injuries, making flowers grow faster, lighting a candle, etc.). I ...
Do you need a new brain to see new colors?
Humans can see 3 colors, sometimes we can see more one color at the same time, this creates 7 variations of colors and a few million different shades of those same 7 colors. blue, red, green = mix ...
Would we perceive more details if each of our eyes had different color cones?
Usually we have 3 types of color cones namely red, green and blue but 25% of us will have the 4th color cone that is rumored to be able to see 100 million colors that is about 100x more. But what if a ...
can a planet be in the habitable zone of a blue star be the best option or a star that gives off more blue light
My planet originally was in a system with a blue star, but I think they are unstable and so it's not the best. So what type of stars give off more blue light in order for plants to be yellow or blue. ...
How would Blue/Yellow colored plants change during different weather seasons
My planet basically revolves around a blue star or a star that gives off more blue wavelengths, and the color of the plants are either blue or yellow or both because they are trying to absorb the most ...
Picking skin/fur/scale/feather colors in the light of a white sun (F-star)
As I have been developing my world, namely a massive moon (0.9 Earth masses) oribiting a gas giant (about 3 Jupiter masses), I have confronted multiple times the question of what colors should the ...
If someone was color blind in one eye could that be explained by being a fraternal chimeric twin? [closed]
Say you had a tribe whose members each had one color blind eye, could this be explained by the absorption of fraternal twins in the womb? (Say chimerism was prevalent because it helped fight off ...
Can I have trees with blue bark?
My planet has a star that peaks in the violet part of the spectrum. Its atmosphere has a purple-ish hue due to this. My planet has a 40.6° axial tilt, giving it frigid winters and hot summers. Now, ...
What would absolute nothingness look like?
In my world, I have these things called 'voids', for lack of a better name. These voids are absolute nothingness. What I'm having trouble with is what they'd look like from the outside. No light = ...
Kinds of stars and local plant life [closed]
I know how the color of a planet's flora is affected by the light from its sun. But my problem is I keep getting things confused. Does anyone know of a resource that lays it all out in a chart? I'm ...
Is it possible to determine the colour of a molecule?
Is there a way to determine the colour and appearance of a large biomolecule? If no one had seen chlorophyll, simply knew of its existence, would you, from its formula, be able to determine that it ...
Plausibility of species with multi-colored skin
I am creating an intelligent humanoid species for DnD. I want them to have skin that has multiple colors. The colors would form patterns on the skin that would be random in each individual or could be ...
Color blindness and sentient animals co-existing with humans
So, I am writing a world where most mammals, birds, primates, and a few reptiles have been sentient since an 'event' of some sort happened in the late 1700s. This means that something like 'Mr. Ed' is ...
Can the color of an alien sky be calculated solely from atmospheric composition and the star's (or stars') spectral type(s)?
What exactly are the relevant numbers for such a calculation, and can it account for the color of the sky? By sky color, I mean the day to day hue that humans (or something else with very similar ...
Colors of cobaltodihistidine [closed]
I have heard the complex, Cobaltodihistidine, (not coboglobin) mentioned several times on this site in relation to alternative oxygen carriers, and I believe that this complex could be what my species ...
How would colonization of different star systems affect safety equipment?
On Earth, most safety equipment as we know it is painted yellow, as well as other high-power machines. Safety jackets worn by construction workers are also as so. Blue light (the majority of the sun's ...
What Star would encourage what color of plants? or, a table of star types to the most efficient plant color [duplicate]
Using the following list of stars, what color is the most efficient for plants to absorb the ideal amount of energy? (This is not a complete list of star types, just some big examples) Yellow Dwarf ...
Could a dichromatic animal distinguish red and green but not blue?
If a dichromatic mammal had better night vision than a human, including tapetum lucidum, could they see large (red) and medium (green) light wavelengths but not small (blue)? Would something similar ...
Could a dichromatic animal see red?
So I'm not really sure whether I get it right or not, but apparently most mammals are dichromatic. Humans have three cones that detect light wavelengths, small for blue, medium for green, and large ...
What Colour would a sulfuric acid lake be?
I was thinking of an interesting landmark to put on my conworld, and I went with the "large body of acid" trope. This lake would be about the size of Lake Superior, and near the equator. The ...
Would living on around Alpha Centauri change how our eyes see color?
I am writing a sci fi novel in which one of the primary factions is a lost space colony sent to Proxima Centauri (Alpha Centauri C) roughly 350 years prior on a generation ship. The trip took roughly ...
Would a society of totally colourblind fare better than a society of people without a sense of smell? [closed]
There's two isolated islands, each big enough to support a population of millions and with all the natural resources they need to advance to the industrial era. But there is one hereditary flaw in 100%...
Anatomically Correct Color-Adjustable Eye
I'm providing an interesting twist on the Anatomically Correct series by focusing on a single body part instead of an entire organism. The following image depicts the average range of the cones of a ...
Can a Sunset Be Black (Infrared)?
Fact 1: The cause of a sunset is from the angle of the sunlight, because the amount of scattering increases as the light passes through more and more of the atmosphere. Fact 2: Higher frequency / ...
Explaining Planet Colors/Compositions
I want to be able to explain: the coloration of my planets when I create them, but I don't have enough knowledge on the colors of elements or chemical compounds. I have done extensive research into ...
Would life always name the light from their sun "white" [closed]
I've heard it said that white light contains all the colors in it. Our sun produces white light and that the visible spectrum is just the range we evolved to see because our atmosphere is transparent ...
Would plants on a planet orbiting a star like ours, have any different color?
So I'm currently designing an alien habitable planet that orbits a star similar to our Sun. Assuming that the composition of the planet's atmosphere, as well as its pressure, are similar to the ones ...
What would a beach look like if prolonged exposure to humans made the sand change color?
So one of the supernatural elements in my urban fantasy story is a system of "aura-syncing" that explains how various supernatural abilities extend to one's clothes and belongings. A full explanation ...
Advanced Alien Coloring [closed]
The Mantis Shrimp is a crustacean known for two things: its punch its eyes For this question I will focus on the latter. A theory about the effects of their super vision is that it causes their ...
Perceiving color like a native
Assumptions One habitable world in each system (blue sun system and yellow sun system). The two worlds are fundamentally Earth-like. The native humanoid species on each world are genetically ...