Knowledge: There are approximately 10 versions of color blue like, azure, turquoise, royal blue, navy and many more. Recently, three more types of red were added to the list of fifteen.

Conversation:
I really like the color red. I find it beautiful.
Neat, are you aware that it's dominant wavelength is about 625 to 740 nanometers?
No, I guess I should have said I like like preference, I don't know any hard facts but would love to know more!
I'm not aware of information related to that but it is on the end of the visible light spectrum., besides orange, and opposite of violet.
oh okay. What else can you tell me about the color red?
the red color in blood actually comes from something called hemoglobin
How many versions of red are there ?

Response: Recently, three more types of red were added to the list of fifteen.