Agapanthus

I had to creep up someone's drive to take this although it was very short. I have been admiring the dark blue of this species and I wonder if it one called 'Navy Blue'. I have a plant already but it is a medium blue colour.
I did some digging in my garden this morning. After all the rain the soil is turning over a treat and I think it's the best quality soil we have ever had in a garden and we have had quite a few gardens.