Let’s get one thing straight. The saying "blue and green should never be seen" derives from a seafarer's tradition of not painting the hull of a boat green in case it's capsized and is harder to ...

Methylene blue is a synthetic compound with a deep blue color that has been used for over a century in various medical, ...

An August 2016 Stanford University study published in Acta Ophthalmologica found that "the birth prevalence of iris color was ...