This cantrip enables the caster to conjure a small sphere of glowing blue radiance. The light has an eerie effect when seen from a distance, but the 3-inch sphere only illuminates an area of 5 feet around itself. Furthermore, the bluelight does not cast reflections beyond this radius. The light does not affect either infravision or ultravision.
When the caster says a rhyme using the words blue and light in any combination, the bluelight appears in his or her open palm and remains aglow until the caster ceases to concentrate on it.