Why did the crayon cry?
Because it was feeling blue.

What's a pig's favorite color?
MaHOGany.

What's the color wheel's favorite kind of music?
The blues.

I asked the color purple to paint me a picture, but it said "I can't, I'm feeling a little blue today."

Did you hear about the rainbow that couldn't stop telling jokes?
It was too colorful.

Colorful movies...

Blue Lagoon
The Color Purple
Red Sonja

Any movie in the genre, Film Noir