Lime is a bright and cheerful color that looks like the color of a sour fruit called a lime. This color is really close to yellow, but it's a little bit greener. Imagine that you picked up a green crayon and started coloring in a circle with it. Then, you picked up a yellow crayon and colored in some parts of the circle. The areas where the two colors mix together create the color of lime. It's a color that makes people feel happy and energetic, just like when they eat a fresh lime. So, lime is basically yellow with a little bit of green mixed in!