Archives for posts with tag: blue

For creating visual effects, green screens and blue screens are the most common for Chroma Key image overlay because they are furthest from human skin tone. Even though blue is further from the red in skin, cameras are more sensitive to green and easier to light up, so it is the more common background nowadays.

WiseGeek.com (source)

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There is a medical condition called Methemoglobinemia, in which the blood carries oxygen but does not properly deliver it. This results in the patient literally having blue skin (or worse, more life-threatening symptoms).

NCBI (study)

University of Nebraska (source)

 

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