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 life forms on the planet feature.
For the plantlie I have used a calculator that helped me find out the best coloration based on the star's mass and age, the result's been that the plants of the planet could come in two sets of colors: Violet (to indigo to blue), Chartreuse (to lime to parakeet) and maybe also something in between the two like combinations. For in depth explanation the reason for the former would be to reflect the most harmful radiation while in the case of the latter it is to absorb it for additional energy.
Unfortunately I haven't been able to find an equivalent to determine skin/fur/scales color, so I was wondering if you could help me with that. I have considered following the same guideline as the plants but I am not sure about it, I mean, real world wise it wouldn't make sense given that our skin isn't green like the plants right?
So far what I have concentrated the most on the humanoid dominant species of the planet, giving them a skin color comparable with humans but much darker kind of like those of Mexican Ethnicity, Native Americans or Indians. Do you think it would make sense? Or should I consider a different set of colors? Is there also a guideline for fur/scales/feathers?
- Star mass: 1.31 suns (F-star white sun)
- Atmosphere of the planet: Earth like with additional carbon dioxide, noble gases increasing the density and most importantly shielding gases.
- Orbital inclination: 30% degrees leading to seasons more extreme than earth's and light distribution (?)