Solferino is a bright purplish-red color.
Solferino is a very specific color, like the color of some flowers or a sunset.
Examples:
The flower was the color of solferino.
The sky turned solferino as the sun set.
She painted her room solferino.
The cat's fur was solferino, just like the flowers.
The dragon in the story was solferino, not red or purple, but solferino!
The solferino crayon was her favorite because it was so pretty.