Venous Blood - Color

Color

(Venous blood is always blue through the opaque skin).

The appearance of veins as dark blue is a wavelength phenomenon, having to do with the reflection of blue light away from the outside of venous tissue if the vein is at 0.02 inches deep or more. Deoxygenated blood is darker than oxygenated blood due to the difference in color between deoxyhemoglobin and oxyhemoglobin.

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Famous quotes containing the word color:

    To face the garment of rebellion
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    Of fickle changelings and poor discontents.
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    Of hurly-burly innovation.
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    ... it is not the color of the skin that makes the man or the woman, but the principle formed in the soul. Brilliant wit will shine, come from whence it will; and genius and talent will not hide the brightness of its lustre.
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    Actors work and slave—and it is the color of your hair that can determine your fate in the end.
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