If tyhe human eye predominantly see's the color blue, what color really is the sky?

Exactly as the individual said above. Blue has a shorter wavelength in the color spectum than other colors so it doesn't "penetrate" the atmoshphere as well as others do. Rather, as it encounters the earth's atmosphere the blue wavelenth of light scatters and makes the sky appear blue. This phenomenon is also why, at sunset, the sky appears purplish red or pink. When the sun is at an angle to the horizon its rays must pass through more atmosphere to reach your eye (it's penetrating the atmosphere at an angle rather than straight down). Because it travels further at this angle, colors with longer wavelengths, like reds and violets, are scattered. This is why the sky appears blue during the day but then turns to a reddish purple in the evening.

Sounds like you're a little mixed up. The human eye does not see predominantly blue; a healthy eye sees all colors of the spectrum equally well. Of course some people suffer from various degrees of color blindness, and have more trouble with certain colors than others, e.g. "red/green color blindness is common.

We here on earth DO see the sky as blue because of the refraction of the sun's light through the atmosphere. The water vapor and other gases in the upper atmosphere act as a sort of prism, and their make-up is such that it just so happens the wavelength of blue is the color wave that gets scattered throught this atmospheric prism more than the other colors. Thus, the sky looks blue.

The effect is known as "Railey Scattering" to meteorologists.

The sky is really clear, as is space. The vacuum in space means no refraction, so it appears black. The sky appears blue due to Raleigh scattering. Light passes through the atmosphere and bends into a certain part of the spectrum and appears blue. Sunrises and sunsets have many colors because of the different angles of the sunlight and Mie scattering. Also, the eye does tend to see blue more easily that some colors, which is why green doesn't appear very strongly is sunsets even though the it is closer to blue in the sectrum than red and should be there. The closeness of the wave lengths is what makes blue appear stronger than green.

The blue colour of the sky is using Rayleigh scattering. As effortless strikes by the ambience, lots of the longer wavelengths bypass instantly by. Little of the pink, orange and yellow effortless is tormented by skill of the air. in spite of the indisputable fact that, most of the shorter wavelength effortless is absorbed by skill of the gas molecules. The absorbed blue effortless is then radiated in diverse instructions. It receives scattered everywhere in the sky. Whichever course you look, a number of this scattered blue effortless reaches you. because you be conscious the blue effortless from everywhere overhead, the sky seems blue.

I think it just depends on what animal you are. To us humans, the sky is really blue, but if you were able to ask a bumble bee, they would probably say a different color just because they can see UV rays.

The sky has no true color. What you are seeing are the lightrays that filter down through the atmosphere and reflect off objects around you.

well the human eye mainly see's the colour blue

so the sky is blue

color blue is an illusion do to the oceans reflection.