Roses are black, violets are black.
I’m colorblind.
Roses are black, violets are black.
I’m colorblind.
Hey, genius! The joke is that roses are usually red and violets are usually violet (duh!), but the person says they're both black because they're colorblind. It's funny because you expect them to describe the colors correctly, but they can't see them. You probably also see everything in black and white.