It is due to the phenomenon of atmospheric scattering of light.
Explanation: First, it is important to know that of all the seven colors that make up white light, red has the maximum wavelength and violet (Also, indigo and blue) has the least wavelength.
Now, imagine a big sphere to be our Earth and imagine yourself standing right on top of the Earth's surface (In this case a sphere). Now, during noon, the sun is overhead i.e., the distance needed to travel by the light from the sun to you is less. Thus, the color of least wavelength- blue( violet and indigo too, but blue has a higher frequency) gets scattered in the atmosphere and hence the sky appears blue in the noon. But, in the morning and evening, the sun is at a side. It is not right over your head. So, then the light needs to travel a longer distance. In such a condition, all the blue color gets scattered away and lose their brightness. The remaining colors are of the red family and hence the sky appears reddish- orange.
Mars
Mars
The standard list of colors in the rainbow is: red, orange, yellow, green, blue, indigo, violetHowever, you can have an many colors as you want if you start adding in reddish-orange, aquamarine, and things like that.
The sun's color results from the temperature of its outer layer, which emits light in the yellow part of the visible spectrum. Hotter stars tend to emit more light in the blue part of the spectrum while cooler stars are more reddish.
A comet is like a baby blue or a dark blue. Also, at the very end, it is like a purple,red also like a blue and white.
SATURN
yellow reddish
the color of pus is kinda yellow,green,and sometimes reddish yellow. pus can change colors,so example if you have coming from a cut place on your body it might be reddish. but most likely it's yellow.
reddish brown
morron
The female Monarch butterfly has yellow in its wings. The male is reddish orange.
I think it is Ultraa!
Maroon.
Red and yellow
Lava.
Mars
Mars