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It is red. Blood is never blue but only appears to be because of the layers of skin and other tissues above it. If blood was blue and only turned red when it touched the air, then it would be blue in a syringe, that being a vacuum sealed environment where no air is present. Blood is not blue.

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Joshua Boles

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4y ago

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When air hits a blue blood what color is?

? Are you asking what color does blue blood turn after it comes in contact with air? Red!


Does blue color reflect light?

Yes, blue color reflects blue light and absorbs other wavelengths of light. When white light (which contains all colors of the visible spectrum) hits an object that appears blue, all colors except blue are absorbed and blue light is reflected, which our eyes perceive as the color blue.


What color is people's blood?

Well, when it is in your body it is blue. When it hits oxygen it turns red.


When white light hits a blue surface what happens?

The blue surface absorbs most colors of white light except for blue, which is reflected. This reflected blue light is what we perceive with our eyes as the color blue.


Why the color of rivers is blue?

The color of rivers can appear blue because of the way water molecules absorb and scatter light. Water absorbs all colors of the spectrum except blue, which it reflects back to our eyes. This can give the appearance of rivers or bodies of water being blue in color.


When light is shone on a blue surface what color is reflected?

Blue. That's why people call it a "blue surface" ... because any other color of light that hits it is absorbed, and never scattered or reflected to your eye.


What colour is blood before it comes out?

Your blood is always and always will be red, the reason why people think its blue is because veins themselves look blue through the skin. This is due to the fat under the skin absorbing low energy light and only reflecting less energetic, blue light. i went to medical school and had to dissect a human in the blood vacum tube it was red it has iron and RED blood cells inside it and hemoglobin is another reason why its red don't listen to anyone who tells you its not red


What colours make summer sky blue?

it's not really any particular color. The color blue you see in the sky is due to water dropplets suspended in the air which the light from the sun defracts the color blue from the color spectrum from the interception of light. Thats also why you can see a rainbow just as the sun is showing. there is still water in the air and the sun hits at just the right spot and the color spectrum is shown.


Why can our eyes see the color of our friend's shirt?

Light that hits the shirt absorbs most of the color and reflects another color. For example, light hits a your shirt. It absorbs all of your colors except one (red, orange, yellow, blue, indigo, purple) and reflects green. So what everybody (who can see color) will see is green.


Does the color of water affect the color of the sky?

Kind of. You see, the actual color of the sky is clear. When the sun's rays hits the ocean water, it reflects into the air, and makes the sky look blue to the human eye. However, water is also clear. The ocean is clear. The things that makes it it's colors are the Sun's rays and what's inside of it like algae and all that stuff. So technically yes, the color of water affects the color of the sky.


Why do some people think the blood is blue?

It likely emanates from the old myth that blood is blue until it hits oxygen. It is common though in diagrams of the cardiovascular system to designate arteries are red and veins as blue although neither are actually that color.


Why does a blue object look black in red light?

Blue objects absorb most of the red light that hits them, reflecting very little red light back to our eyes. This causes the object to appear black in red light because red light is the only color that can reveal the object's true color.