What food coloring colors make neon green?

You can't actually make a true neon green with food coloring. Here's why:

* Food coloring is limited: Food coloring is designed to be safe for consumption, which means it's less vibrant and concentrated than other types of coloring.

* Neon green is a specific wavelength: Neon green is a very bright, almost fluorescent color that falls in a specific wavelength range. It's difficult to replicate this with food coloring, which tends to produce more muted shades of green.

To get a bright green:

* Combine yellow and blue food coloring: The closer you get to a 1:1 ratio of yellow and blue, the brighter your green will be. Experiment with different combinations to find the shade you like.

* Use a bit of green food coloring: Starting with a tiny amount of green food coloring and adding yellow or blue can help you achieve a brighter green.

Important Note: Food coloring is for coloring food and should not be used for anything else.