Common Blue butterfly?

Common Blue butterfly?

Observation - Common Blue butterfly? - UK and Ireland. Description: Spotted this lovely butterfly on a devil's-bit scabious at RSPB Otmoor nature reserve. I think it may be a Common Blue but it would appear that several species look similar and I'm not a butterfly expert! Can anyone confirm?

Spotted this lovely butterfly on a devil's-bit scabious at RSPB Otmoor nature reserve. I think it may be a Common Blue but it would appear that several species look similar and I'm not a butterfly expert! Can anyone confirm?