I love blue! Blue is one of the three primary colours of pigments
Blue is an awesome color.  It's associated with baby boys, right?
that is true, It lies between violet and green on the spectrum 
how wide is the spectrum of color?  Is it infinite?
No the dominant wavelength between approximately 450 and 495 nanometres
Wow.  I love all the colors of the rainbow
Same Blue has been an important colour in art i HAVE HEARD
How did early painters make paint the color blue?
I have heard in the eighth century Chinese artists used cobalt blue to colour fine art!
that's so cool.  Cobalt blue is so pretty, too