The rose is red, the violet's blue,
The honey's sweet, and so are you.
Thou are my love and I am thine;
I drew thee to my Valentine:
The lot was cast and then I drew,
And Fortune said it shou'd be you.
Gammer Gurton's Garland (1784)
Ok, roses are red..
…but violets are certainly not blue!
I would suggest a vivid purple...
Seriously, the clue is in the name.
Happy Valentine’s Day all!