A blue basin is a decision, and it is the one colour that consistently reads as considered rather than as an accident. Blue belongs to water, so a blue sink is the rare coloured fixture that nobody has to justify.
In hand blown and Murano glass the colour runs through the material rather than sitting on the surface, so a blue basin changes with the light through the day and goes deeper as it fills. That is the whole argument for coloured glass over a painted finish.
It works best in a powder room or a guest bathroom, where a single strong object carries the whole space and there is no competing programme. In a family bathroom it can be more personality than the room can absorb.
