What color is blood before it is red?

Answer 1

Blood is a dark red color in veins, and a bright red color in arteries. Blood is never blue!!!!!!!!!

People usually percieve that blood is blue because of when they look at, say, their wrist, it looks blue. This is only because of your skin over it and the way light reflects on it.

Answer 2

Human blood is NEVER blue. Human blood is red, ranging from bright red when oxygenated to dark red when not. It owes its colour to hemoglobin, a metalloprotein compound containing iron in the form of heme, to which oxygen binds. There exists a popular misconception that deoxygenated blood is blue and that blood only becomes red when it comes into contact with oxygen. Blood is never blue, but veins appear blue because light is diffused by skin. Moreover, the blood inside is dark red and exhibits poor light reflection. From a physiological perspective, veins and arteries appear similar when skin is removed and are seen directly.

Answer 3

Blood is red even before it is oxygenated due to the iron-rich protein hemoglobin. Hemoglobin gives blood its red color, whether it is oxygenated (bright red) or deoxygenated (darker red).

Answer 4

Deoxygenated blood is a dark red, due to the haemoglobin in the cells. Once the blood is oxygenated, it is a much brighter red.

Answer 5

Human blood is red regardless of the medium it is in. The shade of red may differ depending on oxygen levels, but ultimately you do not have blue blood.

Answer 6

In humans, red. 'Hitting air' does not oxygenate blood, exposed veinal blood will still be dark red, compared to bright red arterial blood.

Answer 7

Your blood is always red, just when its deoxygenated its much darker then oxygenated. So blood is just a darkerform of red before it is oxygenated.

Answer 8

Blood is a dark red before it is oxygenated, going to a lighter red when it is oxygenated. This is due to the red blood cells, which color the blood.

Answer 9

Blood is always red. The shade may vary depending on oxygen levels, but ultimately you do not have blue blood.

Answer 10

Vertebrate blood is bright red when its hemoglobin is oxygenated. The color is mostly a maroon to dark red when low in oxygen.