YELLOW

Yellow's such a joyous colour.

And yet it has unhealthy teethy connotations for me which won't go away:-

 "You'll wonder where the yellow went
When you brush your teeth with Pepsodent!"

An then there's the Tromping Dave Turner's piss-take of the ghastly Donovan's song:-

"Yellow is the colour of my true loves teeth
In the mornin' when we rise..."

Sorry about that.