response: Red has a dominant wavelength of approximately 625-740 nanometers.
original_response: Red has a dominant wavelenght of approximately 625-740 nanometers
history: I love red color, is my favorite Oh, that's nice. Did you know it's at one end of the visible light spectrum, opposite violet? Yes, I did. Is red a primary color? Why yes, it is a primary color in the RGB color model and the CMYK color model. It is the complementary color of cyan. What more can you tell me about red color
knowledge: It has a dominant wavelength of approximately 625–740 nanometres.