Setting Emission Color troubles

Unity Engine
1

Hey, guys. Trying to figure out how to set emission color through script using property blocks, and running into some issues. This is a pretty well documented process in some other older threads, but for some reason, no matter what I do, the emission intensity always comes out to 8. See script below. Suggestions appreciated.

            MaterialPropertyBlock propBlock = new MaterialPropertyBlock();
            propBlock.SetColor("_EmissionColor", new Color(0, 191, 0, 0));
            materialRenderer.SetPropertyBlock(propBlock);
2

For anyone else who runs across this problem, I was able to get around this by making a public color and setting it in the inspector window.

//This allows you to access the alpha and intensity channels
[ColorUsageAttribute(true,true)]
public Color myColor;