Hello, guys. There is a node that converts a color value to a RRGGBBAA hex code and there is no node for turning it back into a color value. I saw a resolved thread with a solution for this issue, but when I used the blueprint they provided, I ran into some issues with the Hex value rounding to the wrong place and changing/drifting. I used their logic as a backbone and created a solution for a reliable method of changing a hex value created with the “to hex” node back into a color. I hope you guys appreciate it. I was confused for a long time. The issue was the values not being rounded when I selected a color, then being rounded when I input the hex value back into the function. This should solve it. 
https://blueprintue.com/blueprint/ezg8jbq6/