The color palette should be warm, shades of red. Other ideas: metallics, browns, whites, and creams.
If there is one night of the year for romantic candlelight... it's February 14.
I always incorporate little snacks on the table. For Valentine's, chocolates and pink confections on low plates or taller jars make for whimsical additions to the decor.
In the form of candles, coasters...
Nothing else matters without it.