Not the right colour always!
Violets are not all violet. Two more types today - on the left, pink and white bicolor, and on the right, white violets.
The other small blue flower in the second picture is an early example of green alkanet, a plant closely related to the forget-me-not. Apparently, it is called green alkanet because the leaves stay green all winter, as opposed to blue alkanet whose leaves disappear!