Calendula officinalis 'Zeolights'
Dwarf Toadflax (Linaria maroccana)
Dianthus amurensis 'Siberian Blue' - the anthers are sky blue at least
Browallia americana -
growing where it's not supposed to, but it's pretty so I leave it alone.
Vaccinium corymbosum - 'Sunshine Blue' Dwarf Blueberry
I acquired the blueberry last year... whence I enjoyed a bountiful harvest of one whole blueberry. I'm hoping for a bit more this year.