All colors have their own place on the continuum from dark to light and purple is the most pure at the dark end of that continuum, making these Allium glow in the dark.
Since I began painting this group of work centered around fog, I have been thinking of all the ways perception, influenced by one parameter only can be altered. Fog is a good metaphor as it diminishes the distance you can see radically and yet keeps the immediate surroundings recognizable. You see just beyond your own nose. You don't get the big picture. Those around you see the same things you do, so you agree about what reality is.
Our perceptions are always colored by one fog or another. Some large examples are the fog of prejudice, ignorance, envy, greed or fear. But we all have our own set of convictions that keep us in a fog. Whatever the fog that puts a veil over our eyes, it keeps us from enjoying the long view, but may be very satisfying in its limited way.