Hi, the color red, which is at the end of the visible spectrum of light, is my favorite color. 
I like red too. What other colors do you enjoy?
I also like purple, which is a color intermediate between blue and red. it reminds me of the sunset.
That's beautiful. What color is at the beginning  of the spectrum?
Indigo is a deep and rich color close to the color wheel blue and it lies somewhere at the beginning of the spectrum.
Okay how many colors are on the spectrum?
There are numerous variations of the color along the spectrum. Potentially thousands!