When Photoshop's Sliders Won't Do the Job, Try the Three Picker Compensation Method
Each new version of Photoshop brings better sliders to the software for adjusting the colors of your photographs. Sliders are great for quick editing and have become a staple of my post-processing. However, sometimes, the sliders are just not enough for getting that exact color you want, and more control is needed. PiXimperfect has an excellent video for taking extreme control over the color correction process.