Hi, I'm trying to figure out how to change the colors of an image that has a gradient to match a color I have set aside, sort of like when you take a image of a car and you change the color of the car to whatever you want, except this is using gradients. I've attached an image I'm working on its a basic circle with a gradient, some shadows etc. to the right is the colors I want to use. I need to make 4 images each using only one of those colors one the right for each gradient. I've tried adding color balance and hue/saturation to the image, But its ending up getting pixilated and not an exact color match. Does anyone have an idea on how I can make exact duplicates of this image using the colors to the right of the image?

Thank you