What color is the sky on a clear sunny day?

Answer 1

Blue. :D

Answer 2

In general, the sky appears to be blue because of the way white light is "reflected" or scattered in the atmosphere. (The word scatter is a physics term.) The blue appearance of the sky is not the reflection of light off the ocean, as some seem to think. We don't normally think of the atmosphere as having a color of its own because it's gaseous. We we can "see through" gases; they appear transparent. Other questions here speak to why the sky is blue. One is linked below, and it is, quite appropriatly, "Why is the sky blue?"
It has never been BLEW but it is BLUE!

Answer 3

1. Outer space contains virtually no gas/dust to scatter light.

Outer space is black.

2. The sky is blue because that's the colour of air (mostly nitrogen), which is not totally colourless. You can see this effect looking at distant (10 km-plus) mountains. They have a blue tinge (caused by the intervening air between you and the mountains) known as atmospheric perspective.

3. If the sky's colour was due reflection from the oceans, then it would be white above Antarctica, which is snowy white.

4. If the ocean was blue because it reflects the sky, why does it still look blue-ish when under a totally clouded-over sky?

The ocean is blue for the same reason the sky is blue: the sky is blue 'cause that's the colour of air, the sea is blue 'cause that's the colour of water.

Answer 4

The sky is typically blue on a clear sunny day due to the scattering of sunlight by the Earth's atmosphere.

Answer 5

It depends, but most likely...blue

Answer 6

Blue