Dianthus barbatus "Sooty" (Sweet William)
There is no photo available for "Sooty" at present, but just know that it is fragrant and beautiful like the ones above, only "Sooty" is deepest ruby, almost black. A short-lived perennial or biennial (it will reseed), it is fine for the border and for cut flowers. Zones 5-9. (Illustration by Janus (Jan) Kops [Public domain or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons).