Blood does not have different colors. The idea of deoxygenated blood, or "blue blood", is a fallacy. Blood is only crimson (red).
The colour of the blood depends on the composition of the blood. For example the number of red blood cells obviously effects the redness of the blood.
We see different colours because other colours are being absorbed.
red
It has many different colours
You Can Get Felt In Many Different Colours. Especially The Colours In The RainBow.
The cone-shaped cells in the eyes detect colours.
The cone-shaped cells in the eyes detect colours.
Different colours appear because it is the way the human eye perceives them. Colours have different wave lengths and human's eyes can see that which makes you see it as a colour. The thing that makes colours different is the size of the wavelength.
they Suck On blood They Are Diffrent Colours
means the blood and their sacrafice
well in twilight they don't have blood, but in the Darren Shan books they have red blood like humans
Whales have blue blood because of the low amount of hemoglobin in their blood