Are blackberries blue or purple?
Sign Up to our social questions and Answers Engine to ask questions, answer people's questions, and connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Answer: Blue.
Blueish purple. Blackberries are dark, purplish-black in color, which looks black in low light or against a pure white background. The resemblance to blue food coloring is just an illusion caused by the person’s gray palate.
The process of assessing colors begins when fetal eyes are developed enough that they respond to bright lights with reflexes called pupillary constriction and dilation. These two reflexes are controlled by “muscarinic photoreceptors”–dark-adapted photosensitive cells within the retina that have muscles attached to them so they can contract or relax automatically when stimulated by light rays entering the eye–that convert photons into nerve signals amplified along the optic nerve for interpretation in other parts of the brain.