response: Yup, it's weird to think that this is all due to the wavelength of the light, which would be between 450 and 495 nanometres for the color blue.
history: I really love the color blue Nice to know that. Did you know that blue is a primary color in both painting and RGB colour model? Along with red and yellow, yes -- but blue is the best :) Agreed! It also lies just between the colors violet and green on the visible spectrum. There's nothing like a clear blue sky to cheer the soul
knowledge: The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres.