If by blood is blue you mean blood is never blue and is always red then yes blood is blue. Being a little more helpful i can say it's to do with the light absorption of skin and also to do with the surrounding skin colour.
http://www.imt.liu.se/edu/courses/TBMT36/pdf/blue.pdf if you're...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.