Github Repo

Hex and RGB Colors to CSS Filter Converter

Credits go to Barret Sonntag, for implementing the solution on Codepen, and MultiplyByZer0, for providing the original solution over at StackOverflow.
Real Pixel - Color applied through CSS background-color:
Filtered Pixel - Color applied through CSS filter:

Use CSS filter property on your desired element to change its color value:

filter: invert(40%) sepia(84%) saturate(824%) hue-rotate(156deg) brightness(104%) contrast(101%);

Note: Your icon needs to be set to black for the filter to work. If you haven't set it to black already, you can prepend brightness(0) saturate(100%) to your filter property for it to work appropriately.