asked in Food+Drinks+Cooking by (8 points) 2 4 11

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replied by (682 points) 1 3 16
Blueberries are purple except when they are green. Then they are red.

Blueberries have no responsibility to be the color of their name. The name is arbitrary. In fact blueberries are indigo, same as aubergines, "blue" jeans, indian corn, the sixth color of the rainbow, and a few other natural effects.

The rainbow is another example of arbitrary names. Isaac Newton, the gravity guy, decreed that the rainbow should be divided into seven colors because there are seven days in a week. Go figure. Modern students did not like the color indigo being invisible to human eyes so they arbitrarily assigned new names to eliminate it from the rainbow. 
replied by (682 points) 1 3 16
BTW there is no color named purple. That is an optical illusion produced by mixing red and blue.

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4 Answers

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answered by (385 points) 1 3 13
There are many types of berries and their colour is what they are named after; just like Blackberries which are black. Berries contain powerful antioxidant 'anthocyanin' which gives red, blue, purple, black colour to the fruit. Normally deep purple berries which are blueberries are common to considered as blue berries because their deep purple colour considered blue in medieval period.
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answered by (53 points) 1 1 5

Some people say that blueberries are deep purple but they seem blue to me :) They have this blue colour due to the ingredient anthocyanin and the darker is the blueberry the more anthocyanin it has. Its colour may vary according to the soil they grow but they always have a shade of blue if they are good to eat. Those that I have in my garden are all blue and I bought some that are also blue.

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answered by ELITE (3,662 points) 7 15 56
That's what my reaction too when I first bought and eat blueberries from supermarket. I thought because they were called blueberries, they will really color blue. But I was wrong with my perception, they are blue on the outside but deep red on the inside. That is why when I make smoothies, they will turn into deep red because of the blueberries I added. I like the color though instead of being really blue.  They were just called blueberries because of the skin color its a deep or dark blue color. I like blueberries in the kitchen because of their versatile when cooking or baking. Apart from blueberries, there are many types of berries and some of them being name by their color except I think from strawberries. They are good antioxidants and Vitamin C.
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answered by (53 points) 3
I would say blueberries are blue, a very dark blue but they are definitely blue. They even stain blue so

in answer to your question they are indeed blue

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