OMG Monty.. There are TONS of blue flowers. Gentian, Forget Me Nots, Plumbago, Cynoglossum, Ceratostigma, Lobelia, Brunnera, Morning glory, Delphinium, Baby Blue Eyes, Salvias... and on and on..
And Monarch butterflies are orange and black... not a trace of blue..
Most of my favorites have already been mentioned.. Here are some others..
'Blue Sapphire'
'Waterline'
'Sapphire Hills'
'Ocean Liner'