0_Apprentice
I love red. It reminds me roses and weddings. What about you?
1_Wizard
Red is a great color. It is one of the primary colors on the RGB color model.
0_Apprentice
I see, do you know its wavelength? 
1_Wizard
I do actually. Red has a dominant wavelength of 625-740 nonometres.
0_Apprentice
That is relatively large wavelength. Do you know of any traditional or historical uses of red?
1_Wizard
Well red pigmant was one of the first colors used in prehistoric arts. 