Help me choose a "Zitong" couple name.

Tung and catalpa are similar in shape, and tung and purple are also dual. Tung is red and purple is purple. In addition, the flowers of tung trees are pink and purple, which is a natural and unreasonable name. )

I can't think of any words with opposite or similar meanings, so I must pay a little attention to pronunciation. I hope you are satisfied.