I really like to paint, blue is my favorite color. 
Clear blue skies are my favorite, and are caused by the Rayleigh scattering effect.
Oh wow that's really interesting. Is that named after the person who discovered it first? 
Yes, it was named after a British physicist named Lord Rayleigh.
Neat. I really like the colors that blue can be made into as well. 
It is the best of the three primary colors.  In the light spectrum, it is between violet and green in its wavelength.
Wow, does that mean it travels at a similar speed as those two colors? 
Yes, its wavelength is between 450 and 495 nanometres.