I just recently bought some green glow dust (glows in the dark) from Solar Color Dust.
This and clear nail polish is all you need to turn regular white light LEDS in to glow in the dark LEDS.
Here are more colors: Green, banana, blue, aqua, lime, orangsicle, peach, cotton candy, papaya, blueberry.
Green, blue and Aqua are the only colors that look pure white when lit up and when off but not charged. The rest have a noticeable color other than white when lit up and not charged when viewed not directly in the beam. The colors are a little washed out in the pictures of the leds when lit up but are actually quite noticeable.
All of them shine a pure white beam of light with no noticeable tint in the white circle of light.
Violet and lilac did not work well in this application.
Aqua and green have the brightest glow.
Banana glows green according to my eyes.
Blue and blueberry are dim.