What color is blood during its cycle in the body?
The heart pumps blood to the lungs to pick up oxygen. Oxygen-rich blood is then pumped back into the body through the arteries. Blood is light red at this point.
From the arteries, blood flows through small blood vessels called capillaries, until oxygen reaches body tissues. YOUR LIPS HAVE A LOT OF THESE CAPILLARIES, WHICH IS WHY THEY COLOR RED.
The blood is always red, so why does it look like blue through the veins?
It’s all about light blood is always red Veins look blue because light has to penetrate the skin to illuminate the veins you see across your hand, for example. The fact that light consists of different wavelengths penetrates the skin with different degrees of success. In this case what comes back to the eye is blue light and we see the veins in blue.