response: Sounds interesting, another thing would be that one of first colors that prehistoric art used was red pigment from ochre.
original_response: i also read that red is one of the first colors used in prehistoric art
history: 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 I remember that word from school. I forgot about that.
knowledge: Red pigment made from ochre was one of the first colors used in prehistoric art.