response: I am not sure about that either, all I know is that blue is an important colour for decoration and arts since long ago
original_response: I really don't know, perhaps it has some association with how prevalent the color blue has been in decoration and art even back in ancient times.
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 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. I wonder why when people feel sad, that they say they feel 'blue'.
knowledge: Blue has been an important colour in art and decoration since ancient times.