What does it mean for my urine to be a light green to light blue hue?

Mountain dew: usually it is coloring from what you ate or drank. The classic example is red beets. They make it look like you have blood in your urine. Green and blue are uncommon colors in urine. If you drink things with green and blue coloring, this is the most common reason. It should go away if you drink natural liquids like water, juice, milk . Public urinals often have colored chemicals in them.