In the above PHLEARN video, Aaron Nace shows us how to make individual colors really pop in Photoshop. He does so by using a Hue/Saturation adjustment layer. Then, isolate the particular color range so that hue and saturation adjustments only affect that specific color in your images.
How to Make Colors POP in Photoshop
[youtube https://www.youtube.com/watch?v=qZ_xWcqOFIo&w=700]