Chartreuse is a special color that looks like a mix of bright green and yellow. Imagine mixing the green of the grass with the yellow of the sun, and you'll get chartreuse. It is a very vibrant and eye-catching color that is often used for signs, logos and sports teams because it is easy to see and remember. Some people also describe it as a neon color that glows in the dark. You might see it in nature too, like on the wings of a butterfly or the petals of a flower. So, next time you see a bright green-yellow color, think of chartreuse!