0_Apprentice
the color blue is very pretty. what can you tell me about it
1_Wizard
Well, it is one of the primary colors in painting and is part of the RGB color model as well.
0_Apprentice
yeah nice. very needed color. anything else?
1_Wizard
It lies between violet and green on the spectrum of visible light - I guess that's why you always see it in rainbow.
0_Apprentice
yup. always. anything cool a lot of people dont know about the color?
1_Wizard
The sky and the deep sea are not really blue!  They only appear that way because of an optical effect.