what color is blood when it is inside your veins - this is not a joke - I am seriously wondering?

Answer 1

The exact colour of blood depends upon the relative levels of oxygenated iron (HbO) and CO2 in the blood. The higher the CO2 percentage, the more bluish it tends to become.

However, the blood in veins does not have CO2 in that high concentration. So deoxygenated blood in veins is a darker hue of red. It appears blue when you look at it through skin because the light reflected by the blood has to pass through fat deposits and the skin before entering your eyes, so it creates an optical illusion.

Answer 2

Blood in its deoxygenated state (without oxygen) only appears to be blue in your veins, because you are seeing it through your skin, a layer of fat and perhaps other stuff as well. However, blood is always a red color of one hue or another. It is either dark in color in its deoxygenated state, or a brite red in its oxygenated state.

Answer 3

The same color it is outside your veins.

Answer 4

It is a very light colored red, it will not turn dark until you oxidize the blood, and it is defiantly not blue

Answer 5

blood in arteries is bright red, blood in veins is deep red(it's not oxygenated)! :)

PS..the person before that said it's not dark until it has oxygen is wrong :) i'm a nurse!

Answer 6

i wonder that too, but i think think it is still red.
i heard that it looks blue because there is something in the vein. not quite sure

Answer 7

It's red, the same as outside.

Answer 8

Dark red. NOT blue.

Answer 9

its not blue when inside. its red. Whoever says that its blue is wrong.

Answer 10

its suppose to be blue at least thats what i heard