Black and White Rainbow

A black and white rainbow,
Like none I've ever seen.
It goes over depressing,
Cause I put it in my dream.

A black and white rainbow,
Doesn't fill my day,
When a rainbow's supposed to be coloured,
When all I'd see is gray.

A black and white rainbow,
Is just equal to you.
When you're the one I want,
Black and white can make blue.